A heavy frame helps limit vibration and deformation while rolling thick bars or wide metal strip.
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cdocastBuy the Most advanced Rolling Mill For Types Of Metals Strips
The CDOCAST metal strips rolling mill reduces cast bars, plates and sheet stock into controlled gold, silver and copper strips. Five standard models combine rigid frames, precision-ground rolls and adjustable rolling gaps for refinery, mint and metal-forming production.
A metal strip rolling mill reduces the cross-section of a bar or plate through repeated passes between rotating work rolls. Operators gradually adjust the roll gap until the target sheet or strip thickness is reached.
The standard CDO-RM series is intended for gold, silver, copper and compatible non-ferrous metals. It can prepare strip for bullion products, coin blanks, jewelry components, slitting, stamping and other downstream forming processes.
Features focused on stable rolling pressure, thickness repeatability, operator control and industrial production.
A heavy frame helps limit vibration and deformation while rolling thick bars or wide metal strip.
The adjustment mechanism supports gradual multi-pass reduction toward the required output thickness.
Standard Cr12MoV work rolls are hardened for stable surface contact and repeated production.
Five standard motor and roll-size combinations cover different thickness, width and throughput requirements.
Seven rolling mill structures for standard sheet reduction, automatic coiling, heavy-duty rolling, precision foil and combined sheet-and-wire production.
A standalone two-high metal sheet rolling machine for gold, silver, copper and compatible non-ferrous metals. It suits refineries, bullion workshops and jewelry manufacturers that need controlled multi-pass strip reduction without an automatic coiling line.
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The integrated winding system collects longer metal strip during repeated rolling passes. It reduces manual strip handling, helps control coil shape and is suitable for continuous gold, silver or copper strip preparation.
▶ Watch 5.5P Coiler Video
A higher-power precious metal rolling mill for thicker input stock, repeated refinery production and improved strip throughput. The final roll width, target thickness and motor configuration should be selected from the actual material dimensions.
▶ Watch 7.5P Rolling Mill Video
The larger CDO-RM15 and CDO-RM20 structures provide 11 kW and 15 kW motor power with 250 mm-wide rolls. They are intended for thicker plates, larger batch production and industrial gold, silver or copper strip processing.
▶ Watch Heavy-Duty Rolling Mill Video
A four-high mill uses backup rolls to support smaller work rolls and reduce roll deflection. This structure is selected for thinner, flatter strip or foil where thickness consistency and surface control are more demanding.
This separate precision configuration uses tungsten carbide work rolls for high wear resistance and demanding surface-finish requirements. It is commonly considered for fine gold, silver, platinum and other valuable metal products where roll-surface condition is critical.
A combination machine integrates flat rolls for metal sheet with grooved rolls for wire reduction. It provides two forming functions in one footprint for jewelry factories and workshops producing both strip and wire.
Select the machine by input thickness, target output thickness, strip width, metal hardness and required production rate.
Standard CDO-RM5.5 to CDO-RM20 motor, roller, thickness, speed, weight and machine-size comparison.
| Specification | CDO-RM5.5 | CDO-RM7.5 | CDO-RM10 | CDO-RM15 | CDO-RM20 |
|---|---|---|---|---|---|
| Motor | 4 kW | 5.5 kW | 7.5 kW | 11 kW | 15 kW |
| Voltage | Three-phase 380 V, 50/60 Hz | ||||
| Roller speed | 9.4 m/min | 11.4 m/min | 13.1 m/min | 15.6 m/min | 13.4 m/min |
| Output thickness | 25–0.1 mm | 25–0.1 mm | 30–0.1 mm | 30–0.1 mm | 45–0.15 mm |
| Standard roller material | Cr12MoV alloy tool steel | ||||
| Roller hardness | HRC 60–62 | ||||
| Roller size | Φ108 × 180 mm | Φ132 × 180 mm | Φ151 × 180 mm or 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 |
Roll material should be selected according to the metal, surface requirement, reduction schedule and production volume.
The standard CDO-RM specification uses hardened Cr12MoV rolls at HRC 60–62 for general gold, silver and copper strip production.
DC53 rolls may be selected for applications requiring a different balance of hardness, toughness and wear resistance. Confirm availability by model.
Tungsten carbide rolling mills are separate precision configurations for demanding surface-finish and wear-resistance requirements.
Close-up views of the work rolls, direct roll-gap adjustment system and operation controls.
The rollers directly influence strip thickness consistency, surface finish and production efficiency. Cr12MoV, DC53 or tungsten carbide should be selected according to reduction load, finish requirements and maintenance conditions.
The graduated handwheel moves the roller position to set the working gap for each pass. Small, even adjustments help operators reduce plate thickness progressively while maintaining more consistent strip output.
The control panel manages rolling direction and machine operation, allowing the operator to coordinate each reduction pass with the selected roll-gap setting.
Common rolling tasks and the information required before selecting a precious-metal sheet rolling machine.
Rolling cast bars into controlled strip for bullion, jewelry, stamping and further forming.
Multi-pass reduction of copper plate for electrical, decorative or general manufacturing use.
Preparing consistent strip before slitting, blanking, annealing and hydraulic coin pressing.
Optional winding and unwinding systems can support longer strip and continuous production workflows.
For narrow-strip preparation, compare the metal slitting machine. For coin production, see the hydraulic minting press. CDOCAST also supplies metal wire rolling mills, jewelry wire rolling machines, double-head sheet and wire rolling mills, CNC four-roller mills and tungsten carbide rolling mills.
Review the model range, motor power, roller sizes, output thickness and machine dimensions before selecting a configuration.
Answers about metals, thickness, model selection, roller material, four-high mills, coilers, maintenance and electrical configuration.
The standard CDO-RM series is intended for gold, silver, copper and compatible non-ferrous metals. The required rolling force, pass reduction and annealing schedule depend on alloy hardness, starting dimensions and target thickness.
CDO-RM5.5, RM7.5, RM10 and RM15 are listed for output down to 0.1 mm. CDO-RM20 is listed for output down to 0.15 mm. Actual achievable tolerance and surface quality depend on the metal, incoming flatness, pass schedule, roll condition and operator setup.
Compare the maximum input thickness, required strip width, metal hardness, target output thickness and production rate. Larger models provide higher motor power and larger rolls, but the correct machine should be confirmed from the actual material and reduction schedule.
The standard parameter table specifies Cr12MoV alloy tool-steel rolls hardened to HRC 60–62. DC53 or tungsten carbide may be available for selected requirements, but these options must be confirmed for the machine design and intended metal.
A two-high mill uses two main work rolls and is suitable for general sheet and strip reduction. A four-high mill adds backup rolls to support smaller work rolls, reducing roll deflection and improving control when producing thinner, flatter strip or foil.
Yes. Coiling and uncoiling systems can be configured for longer strip and continuous handling. Strip width, coil weight, line speed, tension control and production layout must be confirmed before the system is designed.
Keep rolls clean, inspect surfaces for dents or embedded particles, maintain correct lubrication, check bearings and gearbox condition, verify roll parallelism and avoid feeding material outside the rated thickness or width. Follow the supplied maintenance schedule and safety procedure.
The standard specification is three-phase 380 V, 50/60 Hz. Alternative voltage, roll width, roller material, control system and coiling arrangements may be available. Confirm all electrical and production requirements with CDOCAST before manufacturing.
Send the metal, input dimensions, target strip thickness and width, required output, voltage, roll material preference and coiling requirement.