Cold Rolling Mill "CRM" – Precision & Efficiency
Four‑High two‑stand tandem cold rolling mill, 4Hi AGC, high rolling forces, excellent surface finish.
TOKO design purpose for "Four-high two-stand cold rolling mill" is to achieve high-precision and efficient rolling of metal sheets. It utilizes four rollers in each stand to provide stability and control during the rolling process, ensuring accurate thickness and surface quality of the rolled product. The two-stand configuration allows for multiple passes and progressive reduction in thickness, enhancing the overall rolling efficiency. This design is tailored for industrial production, aiming to meet the demands for high-quality metal sheets in various applications.
4‑High Rigidity
Small work rolls, large backup rolls – minimal deflection, excellent gauge accuracy.
AGC Hydraulic
Automatic Gauge Control via hydraulic screwdown, response <30ms, ±2μm tolerance.
Tandem Configuration
Two stands for progressive reduction – higher throughput, better mechanical properties.
CNC Integration
Siemens 840D, force feedforward, roll bending, thermal compensation.
🏭 4‑High Tandem CRM
⚙️ iTOKO 4Hi AGC Rolling Mill
📐 Two‑stand configuration drawing
📋 Operating regulations & procedures
- 1Personal Protective Equipment: Wear safety helmets, goggles, protective gloves – minimize injury risk from debris or hot parts.
- 2Work Area Safety: Clean, organized, no debris. Avoid loose clothing or jewellery.
- 3Equipment Inspection: Check rollers, lubrication systems, damage or deformities before start.
- 4Parameter Settings: Adjust rolling force, speed, gap per process requirements.
- 5Material Handling: Ensure correct positioning on feed roller track.
- 6Rolling Operation: Gradually increase pressure, monitor abnormal sounds/vibrations.
- 7Quality Control: Check thickness, flatness, surface quality after rolling.
- 8Maintenance & Cleanliness: Regular lubrication, wear check, keep equipment clean.
- 9Emergency Procedures: Know emergency stop and safe shutdown procedures.
⚙️ Technical Highlights
Materials processed
Design focus
99% uptime, minimal maintenance. Automatic work roll change, advanced cooling/lubrication, CE safety.
Applications
Automotive body panels, electrical steel, packaging, building materials, tubing, and precision stamped parts.
Certifications & quality
Frequently asked questions
What materials can the TOKO cold rolling mill process?
Carbon steel, stainless steel (304/316), aluminum, copper, brass, silicon steel, and high‑strength low‑alloy (HSLA) steels.
What is the thickness tolerance and rolling speed?
Thickness tolerance ±2μm with hydraulic AGC, rolling speed up to 1200 m/min (depending on material and gauge).
What control system is used?
Siemens 840D or Mitsubishi CNC with full AGC, roll bending, thermal compensation, and remote diagnostics.
Is the mill available in single‑stand or tandem configuration?
We offer both single‑stand 4Hi and two‑stand tandem configurations to match your production requirements.
Can you customise the mill for specific widths or gauges?
Yes, we tailor roll dimensions, rolling force, speed, and automation level to your specific strip specifications.
TOKO machines have been sold to more than 40 countries and regions. Looking forward to establishing a long‑term partnership with your esteemed company.
Download brochure — we reply within 24h.
Request custom solution📦 24h custom service — coil dimensions, materials, automation level, financing.