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COLD ROLLING MILL
  • 4Hi / 6Hi / 2Hi cold rolling mills
  • Width 300 mm - 1250 mm
  • Thickness from 0.12 - 4.0 mm
  • High speed mills
TRBEX IMPEX PVT. LTD. specilizes in 4Hi/6Hi Cold Rolling mills of varying widths. Using world class equipments, backed by sophisticated digital drives using PLC's, a high degree of automations could be advised.

We normally use ABB and Siemens Drives as our Cold Rolling mills and other equipments. The mills could be supplied on turn-key basis with coolant, filtrations and all accessories.
 
COLOR COATING LINES
TRBEX IMPEX PVT. LTD. manufactures Colour Coating Lines.The lines can be simple, semi-continuous type with infra-red ovens to high speed continuous lines with a standard catenary and "floater-type" convection oven or electrical element heated type.

The line can be designed for water or solvent based liquids (Alkyds, acrylics, epoxies, organosols, plasterols, phenolics, polyesters, polyurethenes, vinyls, PVDF/PVDF-2) for strip thickness of 0.15mm and higher.

TRBEX IMPEX PVT. LTD. have developed special modular lines. These lines with small installed capacity at the beginning can be developed in stages to a high capacity with minimum possible downtime & cost. This is very helpful for the customers in developing countries trying to develop markets for Colour Coated Material.

Some of the features which may be included, depending upon application are as follows : Horizontal alkali and/or acid pre-cleaning systems having spray and removal brush stations Horizontal manual or "S" configuration coaters Laminators and/or embossers Pre-lap, limited overlap/flash-butt welders or sticher type joining Vertical strip accumulators Level 1,2 or 3 automation Edge Trimmers Direct or indirect-fired catenory or "floater type" convection ovens, electric or gas fired or infra-red ovens Spray or dip type pre-treatment sections and/or "dried-in-place" coaters & driers Tension levelling section Prelap, limited overlap/flash-butt welders or sticher type joining.
 
TUBE AND PIPE MILLS
 
Tube Mill are capable of manufacturing sectioned and solid tubes with greater degree of accuracy.Low and high speed mills as per the requirement of cosumers.We provide servo cut system for automatic tube cutting with greater accuracy in cut length to reduce the end wastage.DC or AC digital drives are provided for higher efficiency and better controls.
NB Size Pipe Mills Size Range :-
  • 15-50 mm NB
  • 15-75 mm NB
  • 25-100 mm NB
  • 50-150 mm NB
  • 65-200 mm NB
  • 100-300 mm NB
Precision Tube Mills Size Range:-
  • 9-35 mm OD
  • 12-38 mm OD
  • 15-50 mm OD
  • 25-100mm OD
Some of the salient features:- High D / t ratio achievable Higher speed for better productivity CNC Servo cut System for automatic tube cutting with higher accuracy and of cut per minute Energy saving AC digital drives (optional) for main drives Low burr cold saving system for Cut-Of-Carrige Horizontal/Vertical accumulators for strip feeding.
 
GALVANIZING LINE
Complete automatic hot dip galvanizing lines are manufactured with accurate control of galvanizing thickness through most efficient air knives either by manual setting or through automatic coat control system .The sheet of hot rolled or cold rolled or hard quality coluld be used.

Galvanizing lines tailor made to meet the customer specific applications & budget can be supplied to include most of the following features.

Pre-lap,limited overlap or flash -butt welders Edge trimmers(Optimal) Steel (D.S.Q) galvanizing pots (single, duel or tripple-shuttle type) Horizontal or Vertical non-oxidizing type furnace Vertical strip accumulators at entry and exit Closed -loop coating weight gauges for controlling coating thickness Level 1,2,or 3 automation Mini/zero spangle fixture(using steam, water/chemicals) Air coating knives Dip, spray & coater type passivating system Steel(D.S.Q)galvanizing pots(single, duel or tripple-shuttle type) Tension leveling sections Coil to coil, coil to sheet or combination lines Pre -cleaning sections (alkali and acid)
 
CUT TO LENGTH LINES:
TRBEX IMPEX PVT. LTD. has a wide range of designs for Cut-to-length lines to suit the exact needs of the customer. With a reference of many lines with a width range of 450mm to 1500mm and thickness range of 0.12mm to 10.0mm of ferrous and non-ferrous material.

Roll Feed Lines :
Normally used for high quality requirements of sheets for Automotives and white goods, in these lines, the precision leveller runs continuously at a constant speed and pushes the material in a loop.A low inertia Feed Roll pulls the material out of the loop at high speed and stops at the exact required length, ensuring accurate cut lengths.
Length accuracy of ±0.05mm and diagonal accuracy of ±0.5mm can be achieved, depending on the selection of electrical controls. These lines can cut sheets at the rate upto 40 cuts/minute and speeds upto 80mpm.

Start-Stop Lines/Hump Type Lines:
These lines are the ideal choice for customers who do not require the high production rates associated with Roll Feed Lines and want to process heavier gauge, non-surface critical materials.In these lines, the leveller/flattener works in a start-stop or run & crawl mode. Strips upto 10mm thick and 2000mm wide can be processed on such lines.

Rotory Shearing Lines :
These are used for thinner strips at fast speeds. Typical application is Galvanised and/or colour coated strips for roofing materials. The precision leveller runs at a constant speed. The shear blades are mounted on two eccentrics geared together and activated automatically to match the sheet speed at the exact length for shearing. Speeds upto 100mpm can be attained on such lines.

Precision Levellers :
TRBEX IMPEX PVT. LTD. offers 4High, 5High and 6High multi-roll precision levellers suitable for strip thicknesses as low as 0.10mm and as high as 6.0mm. Built to high precision, these levellers are designed to be adjusted "on the fly" or "as you level". Anumber of adjustable back up roll banks ensure high quality of levelling. Quick change cassette type models are also available to increase the range of strip thickness in the same line.

Tail Out Function :
Automatic tail out function is provided to monitor operations of the entire line to enable unaided and damage free cutting upto the last possible full length sheet after the tail-out of the coil from the uncoiler.

Stacking Systems :
TRBEX IMPEX PVT. LTD. offer air cushion type or drop type or combination air-drop type stackers. End discharge or side discharge systems coupled with extra features of stack storage, weighment and conveying can also be provided. Multiple stackers can be also be provided to eliminate stack change-over time for higher productivity.

SLITTING LINES
TRBEX IMPEX PVT. LTD. designs and manufactures slitting lines for Hot Rolled and Cold Rolled ferrous strips as well as non-ferrous strips. TRBEX IMPEX PVT. LTD. has a reference of many slitting lines, built over years. The capacity of these lines ranges from 300mm to 2000mm (width) and 0.10mm to 10.0mm (thickness) in strips .

TRBEX IMPEX PVT. LTD. offers slitting lines of different designs to exactly suit the customer's requirements of production capacity, high quality of slit product, automation level, flexibility of operations and budget. The slitting lines can incorporate latest technical innovations such as using rapid change system for Slitter Heads.TRBEX IMPEX PVT. LTD. slitting lines produce superior quality of the slit coils with significantly higher levels of productivity. This goes a long way in achieving customer satisfaction
 
Some of the important features of
TRBEX IMPEX PVT. LTD. Slitting Lines are : Automation : TRBEX IMPEX PVT. LTD. can engineer slitting lines to any automation levels required by customers, including computerised diagnosis, production control systems, management information and control systems etc.

Edge-Trimming : TRBEX IMPEX PVT. LTD. also manufactures edge-trimmers. The edge-trimmer heads can be injectamounted, inter-changeable with the slitter heads or can be built into dedicated edge-trimming lines. Such dedicated lines are manufactured upto a speed of 300 mpm.

Recoiler Drums : TRBEX IMPEX PVT. LTD. has a wide range of recoiler drum designs to suit the application, strip thickness and material. Expanded leaf type for thick strips (1.20mm and thicker), Concentric collapse six segments three wedges for thin strips(0.30 to 1.20mm) and Concentric positive collapse six segments six wedges for very thin strips(0.30mm and thinner) are most suited. Replacable recoiler drums with very low changeover time is one of TRBEX IMPEX PVT. LTD. Special design features
 
PICKLING LINES :
TRBEX IMPEX PVT. LTD. offers Push-Pull, Semi-Continuous and Continuous Pickling Lines. Push-Pull lines process one coil at a time, thus removing the need for joining strips. This allows tremendous flexibility of operation and ensures ease of operation and maintenance. As there is no need for accumulators in such lines, these lines have very low cost of investment and are very much cost-effective for medium volume of production.

Push-Pull Pickling Lines can process strips between 1.0mm to 6.0mm thick and 200mm to 2000mm wide. For higher rate of production, TRBEX IMPEX PVT. LTD. offers Semi-Continuous and Continuous Pickling Lines. In both these, continuous operation is achieved by welding/stiching. Accumulators are provided at entry and exit to allow continuous operation during the joining at the uncoiler end and removal of coils at the recoiler end. In continuous lines, the process section runs at a constant speed, while in semicontinuous lines, where the accumulators are small in capacity, the speed of the process section reduces during the coil jointing at the uncoiler and changeover at the recoiler. Such installations are cost-effective due to simplicity of the accumulator designs.

The important features of TRBEX IMPEX PVT. LTD. Pickling Lines are:

Turbulent Acidic Bath: The pickling tanks are shallow tanks made of granite specially contoured to permit fast and trouble free threading. The specially arranged flow of acid in the tanks increases the rate of pickling by causing high turbulence of acid in the tank & thus enabling high speeds with low residence time & hence less length of the pickling tanks.
 
PICKLING LINES :
Spray Rinsing: The special washing systems after the acid treatment are provided to ensure that the strips carry very low chlorides which helps in prolonging the life of the rolling mill coolant in the subsequent cold rolling operation, apart from ensuring longer shelf-life of pickled coils.

Acidic Recirculation System: TRBEX IMPEX PVT. LTD. fully engineers the acid recirculation system to ensure good pickling quality and trouble free performance. All acid recirculation tanks are made from FRVE. All piping carrying acid at temperatures above 80° C. are also made from FRVE/Special grades of P.P. Instrumentation, meters and MMIs are provided in the system for continuous monitoring of the process parameters.

Additional Inline Features: Additional features like Edge-Trimming, Skin-Passing, Coating,Cut-To- Length etc. can be incorporated as per the requirements of the customer.

Environment Friendly: TRBEX IMPEX PVT. LTD. process sections feature properl sealings of the tanks and an efficient fume exhaust and scrubbing system to ensure low release of acid fumes within the plant.

Low Effluents: The waste Pickling Liquor is very rich in iron contents and therefore low in volume. The acidic water effluent is also extremely low.

Low Consumptions: TRBEX IMPEX PVT. LTD. engineering ensures maximum utilisation of the acid for pickling and least wastage through effluents, thus resulting into low consumption of acid per ton of production. Efficient recycling of acidic water in the system reduces drastically the consumption of water per ton.
 
 
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