cdocastBuy the most economical metal slitting machine in china
CDOCAST metal strip slitting machines divide rolled gold, silver, platinum, copper and alloy coils into narrower strips. Four configurations cover torque-motor rewinding, magnetic-powder clutch rewinding, high-precision servo rewinding and heated slitting.
A metal slitting machine uses rotary knives to cut a wide metal coil or strip longitudinally into several narrower coils. For precious metals, accurate knife spacing, stable strip guidance and controlled rewind tension are essential because thin gold, silver and platinum strip can wrinkle, stretch, wander or develop excessive burrs when tension and tooling are poorly matched.
The CDOCAST range integrates unwinding, rotary slitting, frequency-controlled line speed and rewinding. Depending on the strip and accuracy requirement, the rewinder can use a torque motor, magnetic-powder clutch or servo motor; a heated-knife model is also available for suitable processing applications. The same platform can be configured as a gold strip slitting machine, silver strip slitting machine or precision copper and alloy strip slitter.
Choose the rewinding and cutting system according to strip thickness, target width, tension stability and whether heated slitting is required.
A compact ≤100 mm metal strip slitting machine with a 120 W torque-motor coiler.
The ≤100 mm configuration adds a magnetic-powder coiler for adjustable rewind torque.
A ≤150 mm precision metal slitter with a 450 W servo coiler for strip down to 0.05 mm.
A compact hot slitting machine with adjustable knife temperature for ≤80 mm material.
The four models share hardened DC53/W18 rotary knives and frequency-controlled speed, but differ in rewinding method, working width and minimum strip thickness.
| Specification | Torque Motor Coiler | Magnetic-Powder Coiler | High-Precision Servo | 2P Hot Slitting |
|---|---|---|---|---|
| Machine size (L×W×H) | 1360×770×1200 mm | 1360×770×1200 mm | 1726×1100×1130 mm | 1380×860×1170 mm |
| Machine weight | 300 kg | 310 kg | 500 kg | 350 kg |
| Main motor | 1.1 kW | 1.5 kW | 1.1 kW | 1.1 kW |
| Voltage | 3 phase 380 V | 3 phase 380 V | 380 V | 3 phase 380 V |
| Coiler drive | 120 W torque motor | 0.75 kW magnetic-powder coiler | 450 W servo motor | — |
| Magnetic-powder coiler | — | 2.5 kg | — | — |
| Slitting knife hardness | HRC 62–64 | HRC 62–64 | HRC 62–64 | HRC 62–64 |
| Slitting knife material | DC53 / W18 | DC53 / W18 | DC53 / W18 | DC53 / W18 |
| Slitting thickness | 0.1–1 mm | 0.1–1 mm | 0.05–1 mm | 0.05–1 mm |
| Slitting width | ≤100 mm, customized | ≤100 mm, customized | ≤150 mm | ≤80 mm |
| Slitting speed | 0–30 m/min, frequency control | 0–30 m/min, frequency control | 0–30 m/min, frequency control | 0–30 m/min, frequency control |
| Knife temperature | — | — | — | 0–200°C |
Stable edge quality depends on the complete coil path, not only on blade hardness.
The master coil is centered and guided so the strip enters the knife shaft without lateral wandering.
Brake or clutch torque maintains stable incoming tension without stretching delicate precious-metal strip.
Knife spacing, overlap and side clearance are set for the material, thickness and required strip widths.
The slit strands are kept separated and rewound with controlled torque into stable finished coils.
Provide a slit plan, not only the master-coil width. This prevents incorrect knife, spacer and rewinder selection.
Connect slitting with rolling, thickness control and cross-cutting according to the required finished product.
Purchasing answers for precious-metal workshops comparing strip slitting equipment.
The machine is designed for precious-metal and suitable non-ferrous strip, including gold, silver, copper, platinum and alloy material. Knife clearance, tension and speed must be matched to the specific metal and temper.
The torque-motor and magnetic-powder models are specified for 0.1–1 mm strip. The high-precision servo and hot slitting models extend the minimum thickness to 0.05 mm.
The torque-motor and magnetic-powder machines support customized widths up to 100 mm. The high-precision servo machine supports up to 150 mm, while the 2P hot slitting machine supports up to 80 mm.
A torque motor is suitable for straightforward rewinding. A magnetic-powder clutch provides adjustable rewind torque, while servo rewinding is intended for higher-control thin-strip applications and the wider high-precision configuration.
The 2P hot slitting machine provides adjustable knife temperature from 0 to 200°C. Whether heated slitting suits a specific material should be confirmed from the strip composition, coating or process requirement.
Important factors include knife material and sharpness, side clearance, knife overlap, spacer accuracy, shaft rigidity, strip thickness, incoming alignment, tension and speed.
Provide the material, master-coil width and thickness, coil ID/OD and weight, finished strip widths and quantities, burr tolerance, required rewinding method, line speed and factory voltage.
Send CDOCAST your master-coil specification, finished strip-width plan, edge-quality requirement and hourly output for a matched slitter and rewinder configuration.
