Rolling Shutters, Folding Doors & Grills
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Articles: Poly-carbonate rolling shutters
Posted by: on Saturday, April 01, 2017 - 12:12 AM
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Rolling Shutters Poly-carbonate rolling shutters are available in bricks or tiles each piece roughly 12" x 3" as per the image below:





These can be cut to fit the exact shutter size required:




They are also available as a single strip for the entire length as per the images below; in which case they are connected using aluminium sections instead of stainless steel rods. 









These shutters are popular in shopping malls, private bungalows and other areas where the use is primarily to reduce access to the area while maintaining visibility; and burglary due to break-in is not likely.
They are more than double the price of regular perforated shutters or rolling grills and similarly expensive to maintain; but the preferred choice of a select few. 

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Articles: Rolling grill designs
Posted by: on Tuesday, February 28, 2017 - 04:14 AM
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Rolling Shutters There are 4 common grill designs which are used in Mumbai; all of which are fabricated using solid MS rods. 
Click o­n "read more" to view. 
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Articles: Motorised shutter control options
Posted by: on Monday, October 31, 2016 - 12:18 AM
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Rolling Shutters The standard control operation for a motorised rolling shutter is a 3 way push button switch which can be fitted in the wall; but you can opt for remote control options as well if convenient.
Click o­n "read more" for details.
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Articles: Company Logo
Posted by: on Monday, August 22, 2016 - 04:01 AM
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Rolling Shutters

Rise with the phoenix.

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Articles: Artistic painting on rolling shutters
Posted by: on Wednesday, August 17, 2016 - 10:23 PM
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Rolling Shutters We offer rolling shutters in galavanised iron, stainless steel and aluminium for professional artists to express themselves o­n this unique canvas.

Click o­n "read more" to view paintings by Atul Dodiya.

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Articles: Kitchen Cabinet Shutters
Posted by: on Monday, May 23, 2016 - 03:28 AM
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Rolling Shutters We offer compact, sleek aluminium shutters for installation in modular kitchens or existing kitchen cabinets. These are available in a maximum width of 2 feet and up to 5 feet high. The shutter slat is 25mm or 1 inch wide and is anodized to your preferred colour choice. 
Click o­n "read more" to view.
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Articles: Measuring Weight of Rolling Shutter Slats
Posted by: on Friday, February 19, 2016 - 04:27 AM
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Rolling Shutters Rolling Shutter slats or lathes can be purchased o­n the basis of the weight; it is easy enough to check by using an industrial platform scale.

Click o­n "read more" to read entire article.
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Articles: Portfolio March 16
Posted by: on Monday, January 04, 2016 - 11:58 PM
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Rolling Shutters


Manual push and pull rolling shutter in 20 gauge galvanised steel installed at the famous A-Z Industrial Estate at Lower Parel, Mumbai.


Collapsible gate (scissor type folding, open o­n both sides) installed for a garage in Wyoming Building, Little Gibbs Road, Malabar Hill, Mumbai.
This allows for ventilation so that the driver can nap in the garage in the afternoon.




Rolling Shutter with PU coating in wooden polish installed o嚙緯 the terrace entrance to a hotel in Ghatkopar (W), Mumbai. The terrace has been covered with a poly-carbonate canopy to allow outdoor seating.




Rolling Shutter with PU coating o­n both sides (double coating) installed for a residential garage o­n Saint John Baptist Road in Bandra West, Mumbai. 



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Articles: Side Motors for Rolling Shutters
Posted by: on Tuesday, May 05, 2015 - 03:12 AM
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Rolling Shutters The majority of motorised shutters in Mumbai are now fitted with Chinese side motors which are simple to install and last for at least 5 years. The installation is simple enough - the motor is available in both single phase and 3 phase types for the heavier load capacity of more than1 ton. The manual over-ride in case of motor failure is a chain hoist (in place of a hand-crank) which has to be pulled downwards, however like most manual over-rides the speed at which the shutter moves when operated manually makes it painfully hard work. There is a clutch also which can be accessed after reaching up to the motor for emergency manual operation.

The oldest brand and perhaps the best performing motor is of Jielong, however there are now quite a few brands such as Fuchang and Jingshi as well. The warranty if any, is offered by the installer since none of these companies have offices in India as yet.

Click o­n "read more" to view images.
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Articles: PU Coated GI Sheet Metal
Posted by: on Thursday, November 13, 2014 - 04:10 AM
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Rolling Shutters

We offer 20 gauge GI sheet metal strips for use in stainless steel gates for impressive finishes as per the picture below.



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Articles: Indian standards for rolling shutters
Posted by: on Friday, October 17, 2014 - 10:17 PM
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Rolling Shutters Click o­n the link below to download the specifications set for rolling shutters by the Bureau of Indian Standards. It is very detailed, an alternative to "Dummy's guide for rolling shutters" :)

http://www.zoherandco.com/bureau%20of%20indian%20standards-rolling%20shutter.pdf

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Articles: PU Coating Shade Options
Posted by: on Saturday, July 26, 2014 - 12:14 AM
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Rolling Shutters

Poly-urethane coating is a breakthrough in product finishing whereby we can offer spectacular finishes to most metals with superior adhesion properties. 

The photographs below are of various shades options for PU coated GI rolling shutters.


















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Articles: FAQs
Posted by: on Wednesday, June 25, 2014 - 05:15 AM
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Rolling Shutters

Frequently Asked Questions - Rolling Shutters


1. What are rolling shutters?

Rolling shutters are collapsible or rolling doors which can be installed in a doorway or window. They are made up of a number of inter-joined slats or laths which are approximately 3 inch or 75mm wide.

2. What is the function of rolling shutters?

Rolling shutters are used primarily for security reasons i.e. to restrict unauthorised entry. They are also used to reduce noise from the street from entering your residence and as protection for glass windows. They can serve another function as black-out blinds by darkening the room.

3. Where can they be installed?

They can be installed at residential, commercial and industrial locations. For example as window shutters, or at the back of tempos or other commercial vehicles. Industrial warehouses, plants, factories, garages etc.

4. How do they work?

The movement of the rolling shutter is vertical from bottom to top. The shutter curtain rolls upwards to gather in a roll when open and is flat; sealing the opening when lowered. They can be operated manually as pull and push types or with a gearbox and removable handle. They can also be automated to work o要 touch panels, sensors, remotes or push button / switches.

5. Can existing door fittings be replaced with rolling shutters?

Yes, they o要ly require space o要 top (15 x 15 inch) for the shutter curtain to gather. These doors are the most compact type and easiest to install.

6. What sizes are available?

Rolling shutters are custom-made to the exact size you require. The maximum size possible for a single opening is 10 mtr H x 8 mtr W ; this will be a very heavy shutter and motorisation is necessary for operation.

7. What is the life of the product?

The average lifespan for a rolling shutter is 15 years; however it depends o要 the type of shutter and the how well it is maintained. The most common complaint for rolling shutters which have exceeded their utility is of the metal corroding or losing shape which also affects trouble free operation.

8. What are the options available in terms of the finish?

We offer spectacular PU coated finishes in more than 30 shades ranging from flashy golden zebra prints to elegant granite or wooden shades. Since rolling shutters are installed o要 the exterior, the life of the coating is tentatively 5 years after which your shutter can be re-painted.


 
9. At what point of a new construction can the shutters be installed?

The rolling shutters can be installed as soon as the civil and masonry work is complete. If possible provision for the shutters can be incorporated in the building design itself so that they can be installed in the most aesthetic manner that fascilitates maintenance and up-keep as well. In the case of PU coated shutters, the mechanism and side rails (guides) can be installed first and the shutter curtain installed after a few months when the painting is also complete.

10. Which material is best suited for rolling shutters?

Rolling shutters are best fabricated in stainless steel which offers strength as well as corrosion resistance, they are also easy to install since they can be welded easily. However, SS shutters cost double that of aluminium or GI so often the choice of shutter material is simplified by the budget in hand.



11. What is the price of a rolling shutter? Is there a standard rate charged?

The standard market rate for a 20 gauge GI rolling shutter in Mumbai city is Rs. 220/- per square foot as o­n April 2016. This price is usually including the labour charge for installing the shutter, although transportation is charged extra.

12. How do I order?

You can contact us for a quotation by email or o要 the phone; it is important to have the opening sizes for an accurate estimate of the cost.

For any queries, please email phoenixshutters.mumbai@gmail.com or call o要 +91 9920625859


 
    

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Articles: Technical specifications for rolling shutters
Posted by: on Friday, June 13, 2014 - 11:26 PM
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Rolling Shutters

Technical specifications for rolling shutters (roller doors)


These specifications are common for all shutter slats, the variation at most will be half an inch which does not make much of a difference.


Individual slat width 3 inch
Bottom slat 4 inch
Side guide rails 3 inch o­n either side
Brackets 15 x 15 inch
Side motor unit Electricity consumption 200 - 800 W (Watts) depending o­n the motor
Lifting capacity 300, 500, 600 and 800 Kg (kilograms)



Sheet Metal Gauge and corresponding size in mm and weight per square foot

Gauge     Thickness mm         Weight sq. ft. kg
14             1.897                            1.382
15             1.709                            1.245
16             1.519                            1.106
17             1.367                            0.995
18             1.214                            0.884
19             1.062                            0.773
20             0.912                            0.664
21             0.836                            0.608
22             0.759                            0.553


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Articles: Easy installation of shop and garage shutters
Posted by: on Tuesday, June 10, 2014 - 03:13 AM
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Rolling Shutters The shutter brackets can be welded to the side rails (guide rails) for easy installation and to ensure proper alignment, if both bracket and side rails are made in MS as seen in the photograph below.






You can also weld small metal pieces to the side of the guide rails as convenient as per the space available. The guides are usually made with 3mm thick MS to ensure a long life of the shutter without any repairs needed. The patti (metal piece) visible in this image is actually to stop the shutter from rolling too far up, the last slat at the bottom is thicker and hits this piece thereby halting the shutter movement beyond the maximum opening point.

The shutter bottom refers to the last slat at the bottom of the shutter which also contains the slide lock. The standard locking arrangement involves cutting a slat into the bottom with a hand grinder and welding the lock brackets accordingly. Motorised shutters usually don't need a lock at the bottom.




Galvanized iron is also available in pre-coated sheets in white or grey shades. The cost difference is minimal however it makes a big difference to the finishing; you do not need to paint the shutter. The adhesion of paint to the shutter varies depending o要 the shutter material, type of paint and coating thickness. I have heard hot blast GI also offers better adhesion for paint compared to your normal GI but in practise I've found o要ly a standard GI available in the market in different thicknesses. The surface is usually primed with red oxide paint prior to painting.




Ready to install shutter roll made in pre-coated GI slats and fitted with ends caps to prevent the slats from sliding out of alignment.



There are some fantastic PU coatings possible o要 rolling shutters which have good adhesion properties as well - they do not flake like paint, but can scratch. There are more than 30 shades available - the pictures below are of a golden zebra print finish and a granite stone finish.











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Articles: Rolling Shutter Repair - Mumbai
Posted by: on Thursday, June 05, 2014 - 10:25 PM
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Rolling Shutters

We undertake repair and maintenance contracts of your existing rolling shutter in Mumbai.


The primary use of shop shutters are for security after the store is closed. This is specially important for stores which stock valuables which can be sold easily in the market as they attract potential break ins and robbery. That is why prompt service is necessary in case your rolling shutter fails to shut properly.

The shutter is attended to at site itself. As soon as we get a service call our person leaves for an initial site inspection to see whether any parts need to be replaced and to offer a job estimate for the repair job. We accept payment in advance and our customers trust us to do a good job; as professionals we honour our commitments. 

Large companies sometimes prefer to enter into an annual maintenance contract to avoid delay in repairs in case of shutter problems or malfunctions. The contract terms vary depending o­n the quantity, size and type of rolling shutters in their facility and the distance from our workshop. 

The common electronic component in the shutter is the motor and remote. Photo cells and sensors are not very popular due to their high add o­n cost. Since most industrial use shutters are made in non-coated steel, the packing prior to despatch is also not given much importance. Large companies with engineering departments also prefer not to involve their staff in the shutter maintenance, instead prefer to have them fitted by our own staff; the purchase officer asks for a standard 'supply and installation' quotation before placing an order.



This is a photograph of a poly-carbonate rolling shutter which was installed at a store in R City Mall, Ghatkopar. You might notice that the tiles (poly-carbonate bricks) o­n the top are missing and the metal shafts are protruding and bent out of shape. The amount of labour effort required for this kind of repair is tremendous because each row of tiles has to be systematically removed and re-aligned after replacing the broken tiles. In this case, the customer opted to replace the poly-carbonate shutter altogether with regular perforated GI shutter lathes.


Greasing the side-guides of your existing rolling shutter keeps the movement free and decreases the load o簫n the motor.


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Articles: Rolling Shutter Materials
Posted by: on Tuesday, May 06, 2014 - 04:15 AM
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Rolling Shutters

Rolling Shutter Materials


1. Stainless Steel

SS Rolling Shutters are made from AISI grade certified steel; in either grade - 304 or 316. The weight is similar to MS however it offers a longer life due to corrosion resistance and a superior finish. It is the preferred choice in most cases. The cover or hood which protects the shutter from dust and dirt can be welded at the edges to give a cleaner look instead of overlapping and fixing with nuts and bolts as is the normal practice.

2. Aluminium rolling shutters

Aluminium shutters are lightweight, anti corrosion and offer superior finishing. The o­nly drawback is that being a soft metal, the security is compromised since the slats can be forced open by a burglar. The shutter slats, side guides, handles and cover are available in aluminium but the main roller assembly is of MS to endure repeated operation without wearing out.

3. GI Rolling Shutters

Shutters made from galvanized iron sheets are the most common shutters in use in India. They are available in a wide range of thicknesses varying from 24 gauge up to 18 gauge. Also available are pre-coated GI shutters in shades of grey and white. For sizes up to 100 square feet 20 gauge or 0.90 mm thick GI slats are adequate however larger shutters require the heaviest 18 gauge. The gauge can be verified using a vernier caliper but is rarely done in practise; sometimes the vernier scale reading can also be disambiguous to a certain extent. As a result manufacturers often pass off 20 gauge as 18 gauge etc depending on stock availability or even a thicker gauge as a lighter o­ne for the sake of convenience and quick execution of the order. The cost difference is not very significant in smaller quantities.   

4. Polycarbonate shutters

These are transparent polycarbonate panels which are used as a barricade against dust / insects or to restrict entry but not primarily for security as again they are vulnerable to burglars, although they are not as brittle as acrylic sheets. They are formed using polycarbonate panels of 12 x 3 inch which are joined together with teeth formation and held in place using iron rods.

5. MS Shutters

These are the cheapest shutters in the market but have fast lost out to the more durable GI shutters. Mild steel is mostly used o­nly as a bottom slat for shutters today it can be distinguished o­n newly fitted shutters with its rust coloured coating of iron oxide which is painted o­n to prevent rusting.

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Articles: Maximum opening size for rolling shutters
Posted by: on Monday, April 21, 2014 - 12:21 AM
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Rolling Shutters The largest shutter size we undertake as a single opening is of 10 mtr x 10 mtr. The slats used are of the maximum possible thickness 1.2mm and the guides are made 6 inches wide o要 either side. However we advise a grill incorporated in the shutter to allow wind to pass to prevent the shutter from ballooning due to wind pressure.



This is popularly known as a "sumo" shutter due to the width of the slat which is 5 inches instead of 3 inches wide. This is used for large shutters since it prevents the shutter from sagging in the center. It is available in 2 designs - striped and plain.

Obviously, such a large shutter will have to be motorised. The popular motor brands which are used in most shutters in Mumbai are from China - Jielong or Fuchang. They come with a chain that can be lowered and pulled by hand to over-ride the motor in case of power failure. Therefore, it is important to have a lock on the shutter either as a padlock on the outside or a central lock which is grouted in the ground. A scaffolding is also necessary at the time of installation. The shutter components are also heavy for which chain pulleys are required to lift them up.     




The transportation cost is also high for extra large shutters since most transport companies in Mumbai have trucks o­nly up to 19 feet long. Special trucks need to be hired such as open body or closed body vehicles which besides being expensive have to be booked days in advance. Often, such hurdles are overcome with a little ingenuity and appropriate precautions as shown in the photo above where 26 feet long shutter slats have been loaded o­n a 19 foot vehicle.
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Articles: Motorised rolling shutters
Posted by: on Monday, April 07, 2014 - 05:14 AM
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Rolling Shutters

Rolling shutters can be motorised using tubular, central or side motors. These offer convenience and increase the life of the shutter as well reducing maintenance since the shutter rises and falls in perfect alignment with minimum wear and tear to the slats. 

Opening and closing of the shutter can be a tedious process due to the physical effort and time involved. This problem can be overcome by installing a motorised rolling shutter.



Installation of motorised rolling shutters in progress.



Tubular motors come with a manual over-ride option however this can be risky if the garage or shop is road facing without security cover since the shutter can then be opened by anyone with a hand crank. The usual operation is via a key-switch; although the switch is located outside the shutter it can o要ly be operated with the key.

Since shutters in India are made primarily with hard metal - mild steel MS (iron), stainless steel SS or galvanised iron GI the normal operation is also not very silent; you will hear the sound of metal falling o要 metal as the shutter opens or closes in the case of a manual push and pull shutter. Motorized shutters or shutters operated with a gear-box open and close slower which reduces the noise. Imported shutters are made primarily of aluminium insulated with puf or foam. These are silent but not very popular since security is compromised due to the vulnerability of the soft metal to burglary. This has protected the manufacturers here from stiff competition from China since the freight and shipping o要 heavier metals makes import o苯 other types of shutters unfeasible. To add to this, the shutter has to be customised to individual size requirements.
However, imported shutters are used in facilities such as food processing and storage facilities where the temperature is regulated. Many such companies also opt for high speed or rapid closing doors (shutters) at the loading bay as shown in the photograph below.



  

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Articles: Installation instructions for manual push and pull type rolling shutters
Posted by: on Monday, April 07, 2014 - 04:47 AM
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Rolling Shutters





1. Prepare the surface / walls.

Clear the site of all debris or obstructions so that it is easy to work. Make sure the walls are well finished and the plaster is of a good quality so that it does not crumble. The guides can be drilled directly o­n to concrete which will offer the best strength but not directly o­n an unplastered brick wall. Alternatively they can be welded o­n to MS angles as well. This is important so that the brackets and guide sections are aligned correctly with the wall for smooth functioning of the shutter. The shutter can be installed o­n the outside or inside of the garage / shop opening o­n the back wall directly above the opening. Alternatively, you can use the side wall surfaces of the opening as well; however this will reduce the clear height available. Also the shutter hood (cover) will cover o­nly 1 side of the spring mechanism housing; therefore o­nce the shutter is lowered it will be exposed from o­n 1 side (or you will need 2 covers).






2. Install the brackets.

The shutter brackets have a U shape inside o­n to which the main roller is placed o­n either side. Make sure the U is facing up and install the brackets maintaining a uniform level. You can check the level and align the brackets using a transparent water hose. Drilling is easiest o­n a brick wall or woodwork; drilling through stone is time consuming and requires a hammer drill. Depending o­n the quality of the wall, you can use wall nails or anchor screws with a dowel (wall plug or wood filling) as adequate.






3. Place the shutter cage o­n to the brackets.

Make sure the length of the main roller (pipe) is slightly less than the distance between the brackets. This will ensure that it can be placed easily and tightened using nut- bolts without scratching the side of the brackets or having to hammer it into position. The main pipe should be strong enough (the thickness and diameter should be adequate) to hold the weight of the shutter without bending in the center which can cause the shutter slats to sag especially in the case of large shutters. This pipe will remain fixed in place; whereas the shutter cage will rotate enabling the shutter to roll up and down. The position of the shutter cage is also fixed using a nut and bolt o­n either side to prevent it from moving off center.








4. Install the side guides.

Depending o­n the shutter you are installing, the side guides can be made of MS, SS, or aluminium. Regular GI shutters usually have MS guides which are greased for smooth travel of the shutter slats up and down. Aluminium shutters do not require grease at all, it would collect more dust and dirt with the grease than would normally accumulate. You will notice that the edges of the guides are bent o­n 1 side; the bend should face outwards from the wall and comes o­n the top side of the shutter. This is necessary because the shutter slats move outward as they roll and gather o­n the top the movement is not absolutely perpendicular. Install the side guides so that they are in line with the edge of the brackets.





5. Pass the shutter curtain through the guides.

Depending o­n the weight of the shutter, it can be lifted together in o­ne go or in pieces. The shutter slats have inverted bends o­n the edges so that they join easily simply by sliding the edge of each slat through o­ne another to link together. You can maintain a smooth edge and prevent them from slipping by using a hammer and chisel to lock them in position, tapping just hard enough to flatten the slat bend without damaging it completely. The bottom slat is heavier and given a large flat edge, this is allowed a little play in push and pull type shutters since the normal lifting action is never completely even.






6. Adjust the torsion o­n the spring.

Wind the shutter cage to tighten the spring and create the necessary degree of torsion required as per the weight of the shutter. Fasten each pulley to the first slat in the curtain this will be a small section of o­nly about 12 inch in length using a nut and bolt. Too much torsion will make the shutter slam up with a bang when lifted so a lesser amount is better.











7. Test the shutter.

Take a trial of the shutter to ensure the movement is free in both directions and without any obstruction. A unique feature of metal rolling shutters are that they function better as they age, much like a pair of shoes that are broken in. There might be a few creaks and groans (and other embarrassing noises) in the initial stages which usually disappear after repeated usage.





8. Fix the cover in place. The rolling shutter mechanism is covered using a flexible sheet of the same material bent in a square or hexagonal shape and fastened with nuts and bolts. A neater finish might be possible using screws but it will require a smaller drill bit and more fastening points.

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