Slitting and Cold Rolling
Slitting and cold rolling
Kim Hong Loi provides precision steel slitting services tailored to customer requirements, capable of handling hot-rolled, cold-rolled, and silicon steel sheets. In addition, the cold rolling system allows thickness adjustment, surface leveling, and material surface improvement.
Slitting
Strip width after slitting
High accuracy with tolerance: ±0.1mm
Surface after slitting:
Scratch-free, no burrs
Coil alignment after slitting
No twisting or edge impact
Cold rolling
Thickness after rolling
Tolerance required: ±0.01mm – ±0.015mm
Steel surface
Bright, flat, scratch-free, with no wrinkles or dents
Hardness after rolling
Adjustable according to usage requirements
Description
Additional Information
Description
1. What is Slitting & Cold Rolling?
Slitting and cold rolling are two crucial processes in converting hot-rolled steel coils into precise raw materials, serving a variety of high-precision manufacturing industries.- Slitting: The process of cutting steel coils into narrower strips according to required widths, ensuring clean edges, no burrs, and consistent width.
- Cold Rolling: The process of reducing steel thickness at room temperature using high-precision rolling systems, improving mechanical properties, hardness, and surface flatness.
2. Why are Slitting and Cold Rolling Necessary?
These two processes transform rough steel coils into high-quality materials, ready for applications requiring precision in:- Dimensions
- Thickness
- Hardness
- Surface finish
3. Advantages of Processing at Kim Hong Loi
- Precise cutting – clean edges: High-speed slitting machines with imported blades ensure smooth cuts, no burrs, and straight edges.
- Accurate cold rolling – minimal thickness deviation: Thickness tolerance < ±0.01mm, meeting production requirements for cores, electrical components, and precision mechanical parts.
- Custom processing accepted: Steel coils processed from 0.2mm – 3.0mm thick, widths from 350mm upwards, using either customer-supplied materials or Kim Hong Loi’s steel inventory.
- Dedicated technical consultation – delivery support: Experienced technicians assist customers in selecting optimal rolling parameters for final product applications.
4. Practical Applications of Products After Slitting & Cold Rolling
- Electrical – Electronics Industry:
- Production of transformer cores, voltage stabilizers, small motors
- Magnetic sheets, motor housings, inductor cores
- Metal Furniture Industry:
- Steel sheets for table tops, cabinet frames, supports
- Thin rolled steel for electrostatic coating of household appliances
- Automotive & Motorbike Industry:
- Automobile body components
- Motorbike frames, engine covers, fenders
- Household Appliances & DIY:
- Refrigerator shells, washing machine covers, rice cookers
- DIY metal products such as wall shelves, picture frames
- Construction – Light Structures:
- Slitting for C-beams, U-steel, sliding rails, and mechanical construction accessories
5. Why Choose Kim Hong Loi as Your Processing Partner?
- Modern workshop system: 26,000 m² in Binh Tan and Long An
- Long-standing experience – specialized machinery
- Available high-quality steel materials
- Fast delivery – high productivity
- Technical inspection certifications – complete CO/CQ
Additional Information
| Slitting Services | |
|---|---|
| General Information | |
| Material | Rolled Steel / Hot-Rolled Pickled Steel / Colored Steel / Stainless Steel |
| Specification | Strip |
| Thickness | 0.2 mm – 3.00 mm |
| Master Coil Width | 350 mm – 1650 mm |
| Finished Product Width | 20 mm – 1600 mm |
| Coil Weight | 25,000 kg |
| Coil Outer Diameter | 2000 mm |
| Cold Rolling Services | |
|---|---|
| General Information | |
| Maximum Thickness of Sheet | 3 mm |
| Maximum Width | 650 mm |
| Weight | 12,000 kg |
| Inner Diameter | 500 mm |
| Maximum Thickness Reduction | 1 mm |
Strategy
Độ dày sau khi cán:, Sai số độ dày cần đạt: ±0.01mm – ±0.015mm
Design
Bề mặt thép:, Sáng, phẳng, không trầy xước, không có vết nhăn hoặc lồi lõm
Client
Độ cứng sau cán: Có thể điều chỉnh theo yêu cầu sử dụng







