Precision Wire EDM Tension Rollers
♦ The tension roller is an essential component of the Wire EDM wire feeding system. It applies and maintains consistent wire tension throughout the cutting process, ensuring smooth wire movement and minimizing vibration.
♦ Stable wire tension is critical for machining accuracy, corner precision, and reliable automatic wire feeding. A worn or damaged tension roller may cause unstable wire movement, inaccurate cutting, frequent wire breakage, or automatic threading failures. Proper maintenance and timely replacement help maximize machining efficiency and extend machine service life.
Key Features
Maintains consistent wire tension throughout machining to reduce vibration and improve dimensional accuracy.
Manufactured from durable engineering materials with excellent abrasion resistance for extended service life.
Precision-machined surfaces ensure smooth wire transport while minimizing friction and wire damage.
Available for a wide range of Wire EDM machines, including Sodick, Mitsubishi, Fanuc, Makino, Agie Charmilles, Seibu, Brother and other popular brands.
- Common Specifications
| Item | Specification Range |
|---|---|
| Product Name | Tension Roller |
| Application | Brass Wire EDM |
| Compatible Wire Diameter | Φ0.05 mm – Φ0.30 mm |
| Roller Material | Hardened Steel / Alloy Steel / Wear-Resistant Material |
| Roller Surface Hardness | HRC 50 – 65 |
| Outer Diameter | 15 mm – 50 mm |
| Inner Diameter | 3 mm – 15 mm |
| Roller Width | 5 mm – 25 mm |
| Machining Accuracy | ±0.005 mm – ±0.01 mm |
| Surface Finish | Precision Ground Surface |
| Wire Contact Surface | Wear-Resistant Precision Groove |
| Groove Type | V-Groove / U-Groove / Customized Groove |
| Tension Stability | High-Precision Wire Tension Control |
| Rotation Performance | Smooth Rotation with Low Friction |
| Applicable Machine Brands | Compatible with Mitsubishi, Sodick, FANUC, Makino, Charmilles and other Wire EDM machines |
| Working Environment | EDM Cutting Environment with Water-Based Dielectric |
| Operating Temperature | 5℃ – 40℃ |
| Service Life | Approx. 800 – 2000 Working Hours (Depending on Cutting Conditions) |
| Quality Control | Dimensional Inspection and Performance Testing Before Shipment |
| Customization | OEM Dimensions and Special Specifications Available |
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Frequently Asked Questions
It transfers electrical energy from the power supply to the wire electrode, enabling stable electrical discharge during machining.
Replacement depends on machining hours, workpiece materials, and operating conditions. Regular inspection is recommended to maintain optimal performance.
Common signs include increased wire breakage, unstable discharge, poor surface finish, reduced cutting accuracy, and visible wear on the contact surface.
Yes. Excessively worn contacts may reduce electrical conductivity, resulting in unstable machining and lower cutting precision.
Yes. Power feed contacts are commonly available in tungsten carbide, copper tungsten, silver tungsten, and other conductive alloys to meet different machining requirements.