Hard carbide roll surfaces are intended for demanding wear resistance and controlled final-pass sheet finishing.
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The CDOCAST tungsten carbide rolling mill uses hard carbide work rolls for precision finishing of gold, silver, platinum, copper, aluminum and compatible metal sheet. Four standard models cover compact sheet finishing, magnetic-powder-clutch coiling and output thickness down to 0.05 mm on the listed RMM5.5 configuration.
A tungsten carbide rolling mill—also searched as a tungsten steel rolling mill or carbide roller mill—is normally selected when roll wear, surface consistency and fine thickness control are more important than economical heavy reduction.
For many gold, silver and copper workflows, a standard Cr12MoV or DC53 rolling mill performs the larger reduction passes first. The metal then moves to the tungsten carbide sheet rolling machine for the final precision passes. This approach reduces unnecessary wear on the premium carbide rolls.
Product characteristics focused on carbide roll wear resistance, finishing control and stable coiling.
Hard carbide roll surfaces are intended for demanding wear resistance and controlled final-pass sheet finishing.
Standard models list minimum output from 0.1 mm, with RMM5.5 listed down to 0.05 mm for 60 mm-wide gold.
Torque-motor or magnetic-powder-clutch coilers support more stable winding according to the selected configuration.
The frame, drive and roller assembly support repeated precision passes for valuable metal sheet and foil.
Select the model from incoming thickness, target output, strip width, metal, tolerance and required winding system.
Complete motor, thickness, roll, coiler, weight and machine-size comparison from the original product specifications.
| Specification | RMC4 | RMC5.5 | RMM5.5 | RMM7.5 |
|---|---|---|---|---|
| Motor | 3 kW | 4 kW | 4 kW | 5.5 kW |
| Voltage | 380 V, three phase, 50/60 Hz | |||
| Roller speed | 8.5 m/min | 10.7 m/min | 10.7 m/min | 11.4 m/min |
| Output thickness | 5–0.1 mm | 20–0.1 mm | 30–0.05 mm for 60 mm-wide gold | 25–0.1 mm |
| Listed output tolerance | Confirm | Confirm | ±0.003 mm | Confirm |
| Roller material | Tungsten carbide | |||
| Published roller hardness | HRA 92–93 | |||
| Roller size | Φ98×120 mm 90 mm carbide length | Φ123×152 mm 120 mm carbide length | Φ123×152 mm 120 mm carbide length | Φ132×180 mm 150 mm carbide length |
| Lubrication | Bearing bush, grease lubricated | |||
| Coiler type | Torque motor | Torque motor | Magnetic powder clutch | Magnetic powder clutch |
| Machine weight | 500 kg | 630 kg | 650 kg | 1200 kg |
| Dimensions (L×W×H) | 920×1020×1300 mm | 1320×1160×1370 mm | 1420×1260×1470 mm | 1580×1350×1420 mm |
| Optional magnetic-powder coiler | — | — | 5 kg OPC-050 or 10 kg OPC-100 | 10 kg |
| Winding motor | — | — | 5 kg: 1100 W 10 kg: 2200 W | 2.2 kW |
Three important configurations covering the tungsten carbide work rolls, tension-controlled winding and ultra-precision CNC operation.
The high-hardness tungsten carbide roll surfaces provide strong wear resistance and dimensional stability for controlled final passes. Keeping the rolls clean, parallel and free from hard particles helps protect sheet finish and thickness consistency.
In configured continuous lines, magnetic powder clutches regulate torque at the strip take-up and payoff units for steadier winding tension. Controlled slip also provides mechanical protection if resistance rises unexpectedly. The standard RMM specifications list the coiler; a complete unwinding-and-rewinding arrangement should be confirmed with the required coil weight and strip width.
On the ultra-precision numerical-control configuration, the touchscreen CNC interface works with the servo drive system for repeatable adjustment and more consistent process control. CNC and servo functions should be selected according to the required thickness tolerance and automation level.
A practical production sequence that protects premium carbide rolls and improves final-pass control.
Use a standard alloy-steel rolling mill for larger thickness reductions when surface requirements allow.
Prepare the metal according to alloy work-hardening behavior and remove particles that could mark the carbide rolls.
Use the tungsten carbide foil rolling mill for controlled final thickness and strip collection.
For primary reduction, compare the metal strips rolling mill. For CNC four-high processing with coiling, review the four-roller precision rolling machine.
Review the model range, roller sizes, output thickness, coiler options and machine dimensions.
One visible FAQ set covering applications, models, thickness, coilers, roll protection and production planning.
It is a precision sheet and foil rolling machine fitted with tungsten carbide work rolls. It is commonly selected for the final passes of gold, silver, platinum, copper, aluminum and compatible alloys when wear resistance, surface consistency and fine thickness control are important.
Standard Cr12MoV or DC53 rolls are generally more economical for large primary reductions. Tungsten carbide rolls are better reserved for controlled finishing passes, fine output thickness and demanding surface requirements.
RMC4, RMC5.5 and RMM7.5 are listed down to 0.1 mm. RMM5.5 is listed down to 0.05 mm for 60 mm-wide gold, with a listed output tolerance of ±0.003 mm. Actual results depend on metal, width, incoming flatness, reduction schedule and roll condition.
Compare the incoming thickness, target output, strip width, metal, tolerance, production rate and winding requirement. RMC models use torque-motor coilers, while RMM models are configured with magnetic-powder-clutch coilers.
The clutch helps control winding torque and provides a more stable strip-collection arrangement. Confirm the required coil weight, strip width, line speed and winding motor before selecting the coiler.
Keep the material and rolls free from hard particles, avoid feeding stock outside the rated thickness or width, inspect incoming sheet edges and use standard rolls for unnecessary heavy reduction. Follow the supplied lubrication, alignment and maintenance procedure.
The standard specification is three-phase 380 V, 50/60 Hz. Alternative electrical requirements and winding configurations may be available, but they must be confirmed with the metal, strip width, target thickness and coil requirement before manufacturing.
Usually not. A cost-effective workflow often uses a standard rolling mill for the larger reduction passes and the tungsten carbide rolling mill for the final precision passes. The exact process depends on the alloy and required surface finish.
Send your metal, input thickness, strip width, target output, tolerance, coil weight, voltage and production rate.
Crafted from high-density tungsten carbide (hard alloy), our rollers boast an exceptional hardness of HRC 92-93—far surpassing conventional alloy steel rollers (HRC 60-65). With outstanding wear resistance, they deliver a 5-8x longer service life, making them ideal for high-precision, high-strength continuous rolling processes. Their unmatched stability ensures consistent performance without deformation over prolonged use.
Achieves pressing accuracy of ±0.01mm, producing sheets with uniform thickness, free of burrs or cracks. Perfect for processing ultra-thin materials like high-precision precious metal foils (gold, silver, platinum) and electronic foil components.
Our specialized polishing technology delivers a flawless surface with Ra≤0.05μm mirror finish, eliminating the need for additional polishing. Ready for immediate use in high-end decorative applications, electronic coating, and other demanding fields.
Featuring dynamic torque adjustment via excitation current (millisecond response), our magnetic particle clutch ensures precise control—ideal for frequent rolling force changes (e.g., varying materials/thicknesses). Its flexible coupling-like properties enhance process adaptability. During overloads (e.g., material jams), the clutch instantly slips to isolate excess torque, safeguarding machinery with rapid response and reliable protection.
Our servo-driven, high-precision coiling/uncoiling system, integrated with a magnetic particle clutch, enables fully automated continuous production. The closed-loop speed-tension control (±1% accuracy) dynamically adjusts rolling tension to prevent material stretching or breakage. Equipped with smart edge-guiding and constant-tension modules, it’s optimized for 0.01mm ultra-thin precious metal foils, ensuring wrinkle- and damage-free output. From uncoiling to rolling and recoiling, the entire process is completed in a single feed, boosting productivity by 40% while minimizing waste—the ultimate solution for premium foil processing.
