ERW Single Use Cops
ERW (Electric Resistance Welded) Single Use Cops are an economical solution designed for
Draw Twisting Machines and Splitting Yarn Machines used for Polyester and Nylon yarn. These
cops offer excellent weight consistency and vibration-free operation, helping to reduce
spindle and bolster maintenance. ERW Single Use Cops are intended strictly for one-time use
and are the most cost-effective option compared to CDW and multi-use cops. Their controlled
run-out reduces machine vibration, resulting in lower oil-change frequency and smoother
overall performance. Built as cylindrical tubes with a triangular driving surface, ERW cops
conform to ISO 1472 dimensional standards and are manufactured with tight tolerances to
ensure stable and reliable operation during one complete cycle.
Range of Steel Cops for Draw Twisting Machine
| Size of ERW Cops | Weight |
|---|---|
| 45.15mm*0.8mm*420mm | 400gm |
| 45.15mm*1.00mm*420mm | 480gms |
| 45.15mm*1.2mm*420mm | 550gms |
| 49mm*0.8mm*420mm | 440gms |
| 49mm*1.2mm*420mm | 620gms |
*Single Use Cops have 2 different variety. CDW Single Use Cops & ERW Single Use Cops.
Cylindrical Tubes with Triangular Driving Surface
Tolerance on mass for 1000 Complete Cops is
Nos. 1 to 7: +/- 1.0%
Nos. 8: +/- 1.5%
| Symbol | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | Tolerance |
|---|---|---|---|---|---|---|---|---|---|
| L | 305 | 340 | 360 | 380 | 400 | 420 | 450 | 495 | + 1 |
| 0 | |||||||||
| L1 | 225 | 225 | 272 | 272 | 272 | 272 | 272 | 272 | + 1 |
| 0 | |||||||||
| D | 46 | 46 | 46 | 46 | 46 | 46 | 46 | 75 | - |
| 51 | 51 | 51 | 51 | 51 | 51 | 51 | 81 | - | |
| e | 38.8 | 38.8 | 38.8 | 38.8 | 38.8 | 38.8 | 38.8 | 38.8 | + 0.25 |
| 0 | |||||||||
| e1 | 41.2 | 41.2 | 41.2 | 41.2 | 41.2 | 41.2 | 41.2 | 41.2 | +0.2 |
| 0 | |||||||||
| d | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | + 0.2 |
| 0 | |||||||||
| d1 | 19.05 | 19.05 | 19.05 | 19.05 | 19.05 | 19.05 | 19.05 | 19.05 | + 0.05 |
| 0 |
Note: this drawing is only for the guidance of purchaser and indicated only the main dimensions.
Advantages of Singleuse Metal Cops
Due to controlled Run Out
maintenance of Spindle & bolster reduces for Draw Twister as well as Splitting yarn
machine.
Oil change frequency reduces
due to vibration free Cops.
Cops are well controlled in
weight.
Single use Cops are cost
effective compared to Multi use Cops.
CDW Single use Cops can be used
for 2 or maximum 3 cycles for Draw Twisting machine / Splitting yarn machine.
ERW Single use Cops can be used
for only single cycle.
Application of Singleuse Metal Cops
For Draw Twisting Machine as
well as Splitting yarn machine for Polyester & Nylon Yarn.
Quality Assurance Equipment used
