Matched grooves support controlled cross-section reduction and more consistent intermediate wire geometry.
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cdocastBuy the Most advanced Rolling Mill For Types Of Metals Sheet& Wire
The CDOCAST jewelry wire rolling machine uses precision-grooved rolls to reduce cast rods and square wire through controlled passes. Five standard models cover workshop-scale gold and silver wire preparation through heavier industrial precious-metal wire production.
A jewelry wire rolling mill reduces the cross-section of gold, silver, platinum, copper and compatible non-ferrous wire stock between matched grooved rolls. Used as a gold wire rolling machine, silver wire rolling mill or platinum wire preforming machine, it passes material through progressively smaller grooves until the required intermediate square or profiled size is reached.
Rolling is normally part of a complete wire-production process. Depending on the required final geometry, the rolled material may continue through annealing, pointing and wire drawing before final winding. This distinction is important when buyers require finished round wire rather than rolled square wire.
Machine features focused on stable wire reduction, repeatable profiles and reliable precious-metal production.
Matched grooves support controlled cross-section reduction and more consistent intermediate wire geometry.
A heavy structure helps limit vibration and frame deflection while processing dense precious-metal rods.
The direct handwheel arrangement lets the operator set roller position for the planned reduction sequence.
Cr12MoV is standard; DC53 or tungsten carbide upgrades can be evaluated for specific wear and finish requirements.
Original CDOCAST product views for lower-power workshop production and heavier wire-reduction requirements.
Both models are listed for wire reduction from 7 × 7 mm to 1 × 1 mm. The RM7.5 adds higher motor power and a faster listed roller speed for increased workshop output.
Larger rolls, greater motor power and wider wire-size ranges support heavier incoming rods and larger industrial precious-metal wire batches.
Select the machine from incoming wire size, required intermediate size, alloy, production speed and downstream drawing process.
Complete motor, speed, wire-size, roll, weight and machine-dimension comparison from the original product specifications.
| Specification | RM5.5 | RM7.5 | RM10 | RM15 | RM20 |
|---|---|---|---|---|---|
| Motor | 4 kW | 5.5 kW | 7.5 kW | 11 kW | 15 kW |
| Voltage | 380 V, three phase, 50/60 Hz | ||||
| Roller speed | 15 m/min | 18.3 m/min | 21 m/min | 25 m/min | 13.4 m/min |
| Wire size | 7×7–1×1 mm | 7×7–1×1 mm | 14×14–6×6 mm | 18.5×18.5–11×11 mm | 23.5×23.5–17×17 mm |
| Standard roller material | Cr12MoV alloy tool steel | ||||
| Roller hardness | HRC 60–62 | ||||
| Roller size | Φ108×228 mm | Φ132×228 mm | Φ151×250 mm | Φ180×250 mm | Φ200×250 mm |
| Lubrication | Bearing bush, grease lubricated | ||||
| Machine weight | 600 kg | 950 kg | 1200 kg | 1700 kg | 3000 kg |
| Dimensions (L×W×H) | 1200×640×1370 mm | 1340×750×1420 mm | 1430×760×1500 mm | 1530×840×1600 mm | 1740×900×1700 mm |
| Optional roll material | DC53 or tungsten carbide, subject to model and application confirmation | ||||
Original product views of the grooved rollers, control panel, direct adjustment system and optional wire take-up device.
The groove profile and roller condition directly affect wire geometry, surface quality and production stability.
The panel manages rolling direction and machine operation for the planned multi-pass reduction sequence.
Graduated handwheels adjust roller position so the operator can set the required groove engagement for each pass.
A compatible take-up arrangement helps collect processed wire more evenly. Coil size and tension requirements should be confirmed before production.
Information that helps match the jewelry wire rolling machine to the complete precious-metal wire workflow.
Provide the alloy, starting shape and maximum cross-section rather than selecting by motor power alone.
Confirm the square or profiled size required before annealing and final wire drawing.
Pass reduction and annealing frequency depend on alloy hardness, work hardening and surface requirements.
Specify coil diameter, coil weight, operating direction and available floor space for supporting equipment.
For combined sheet-and-wire production, compare the double-head rolling machine. For higher-speed continuous wire reduction, review the industrial metal wire rolling mill.
Review the model range, wire sizes, roller specifications and machine dimensions before confirming a configuration.
Concise answers about materials, model selection, wire sizes, roll materials, final round wire and take-up options.
The standard CDO-RM wire rolling series is intended for gold, silver, platinum, copper and compatible non-ferrous alloys. The pass schedule and annealing frequency must be selected according to alloy hardness, starting cross-section and required intermediate wire size.
Choose from the actual incoming wire dimensions, required output range, alloy, production speed and downstream drawing process. RM5.5 and RM7.5 are listed for 7×7 mm down to 1×1 mm, while RM10, RM15 and RM20 cover progressively larger cross-sections.
CDO-RM5.5 and CDO-RM7.5 are listed for wire sizes down to 1×1 mm. The larger RM10, RM15 and RM20 machines have different, heavier wire-size ranges shown in the parameter table.
The original specification lists Cr12MoV alloy tool-steel rolls at HRC 60–62. DC53 or tungsten carbide can be evaluated as upgrades, but suitability and availability must be confirmed for the selected model and wire application.
Not necessarily. Grooved rolling efficiently reduces and profiles the incoming rod, but finished roundness and final diameter may require annealing and a downstream wire drawing machine. Confirm the required final cross-section before choosing the process.
A take-up arrangement can be considered for compatible production layouts. CDOCAST needs the required coil diameter, coil weight, line speed, tension requirement and operating direction before confirming the configuration.
The standard table lists three-phase 380 V, 50/60 Hz. Alternative electrical requirements, groove profiles, roll materials and supporting take-up equipment may be available and should be confirmed before manufacturing.
Send your metal, incoming wire size, required intermediate size, hourly output, voltage and take-up requirement for model selection.
1. High-Grade Alloy Rollers for Uncompromising Quality
We utilize premium forged alloy rollers, renowned for their exceptional wear resistance and thermal stability. This choice directly translates to superior surface finish on your precious metal wires, extended intervals between re-grinding, and consistent dimensional accuracy over long production runs, ensuring ultimate product stability.
2. Robust & Heavy-Duty Construction for Maximum Stability
The mill features a massively rigid, one-piece frame construction. This heavy-duty design effectively absorbs and dampens the high dynamic loads generated during rolling, virtually eliminating frame deflection and vibration. The result is not only enhanced operational safety but also significantly improved wire dimensional consistency and a longer machine service life.
3. Precision-Guiding System for Flawless Wire Geometry
Our proprietary, uniquely engineered wire guiding and alignment system is key. It meticulously centers the wire entering each roll stand, dramatically reducing tolerances and preventing common issues like twisting or asymmetrical deformation. This innovative design is what guarantees the exceptional geometric precision and uniformity of your final wire product.
4. Optimized for Zero-Contamination Processing
The entire deformation path, from entry guides to the rolls themselves, is crafted from dedicated, non-reactive materials and finished to a mirror-like polish. This meticulous attention to detail ensures that you can roll gold, silver, and platinum in succession without cross-contamination and with virtually zero material loss, preserving the full value of your precious metals.
5. Tailored Solutions for Your Specific Production
We understand that one size does not fit all. Our rolling mills are highly customizable, with options to specify the number of rolling stands, final wire diameter range, motor power, and the level of automation. This flexibility allows us to deliver a perfect solution, whether for a specialized jewelry workshop or a large-scale industrial refinery.
6. Advanced, Interference-Free Drive Technology
The machine employs a sophisticated combination of multiple independent drivers and a meticulously calibrated gear train structure. This advanced configuration delivers perfectly moderate and controlled rolling speeds, crucial for the delicate nature of precious metals. Furthermore, this design inherently prevents torsional vibration and power transmission interference, ensuring exceptionally smooth operation and protecting the integrity of your fine wires.