Membrane
Switch & Panel
Sheet-Metal
Processing
HF Transformer
Advanced PCB
PCB Assembly

Supported File Format/Software Type

JRPanel independently develops ERP real-time pricing + production system, which can give fast quotation within 2hrs based on the complete data
drawings provided by customers. (Design drawings /Engineering contacts /Production / Eexpress/After-sales service)

Sheet Metal Processing

The sheet metal processing technology is complex and diverse, mainly including cutting, blanking, bending, etc. At the same time, it also provides
services such as laser cutting, spraying screen printing, and assembly according to the customer's drawing design requirements. The following is the
basic process of JRPanel Sheet Metal Processing.

01 Application

02 Blanking

03 Bending

04 Fitter

05 Welding

06 Polishing

07 Surface Treatment

08 Semi-finished product inspection

09 Silkscreen printing

10 Complete assembly

11 Quality Inspection

12 Warehousing packaging

13 Ready for Ship

Available materials of Sheet-Metal Process

*A single sheet is generally [ length × width: 2440~2500 × 1220~1250 mm] (can be cut to any size according to needs)
* Weight calculation: length (m) × width (m) × thickness (m) × density (kg/m³) = kilogram (kg)
Note: 1. The general tolerance of material thickness is +0, -0.08. This negative tolerance gradually increases as the thickness of the plate increases.
2. A micrometer/micrometer should be used to measure the thickness of the material, not a caliper.

Material / Code Thickness Tensile Strength Material-Surface Available Model Density
Cold rolled plate/SPCC 0.8/1.0/1.5/2.0/2.5/3.0/4.0/5.0/6.0 Above 28kgf/mm Glossy / 7.85KG/㎡
characteristic 1. Iron-gray luster, the surface is easy to scratch and rust, so you must pay attention to protection and quickly turn the order during processing.
2. Suitable for electroplating (color zinc plating, white zinc plating, blue zinc plating, nickel plating, electrophoresis, blackening), baking paint, powder spraying... etc.
Hot rolled plate/Q235 0.8/1.0/1.5/2.0/2.5/3.0/4.0/5.0/6.0 Above 41~52kg/mm Glossy / 7.85KG/㎡
characteristic 1. Black-gray luster, the surface is not easy to be scratched, but it is easy to rust spots, so you must pay attention to it
2. Suitable for baking paint, powder spraying, etc.
Galvanized sheet/SECC 0.8/1.0/1.5/2.0/2.5/3.0/4.0/5.0/6.0 / Glossy / /
characteristic 1. Iron-gray luster, the surface is easy to scratch and rust, so you must pay attention to protection and quickly turn the order during processing.
2. Suitable for spray painting, baking paint, powder spraying... etc.
Stainless steel plate/SUS 0.8/1.0/1.5/2.0/2.5/3.0/4.0/5.0/6.0 / Matte 2B / Brushed /
Mirror
SUS201/SUS304/
SUS316
7.95KG/㎡
characteristic 1. The metallic white luster, the surface is not easy to rust, and can be divided according to the surface state: matte, shiny, mirror, brushed, etc. To protect the surface, PVC protective film is often attached.
2. Generally do not do surface treatment. Special surface treatment is required for baking varnish.
3. Can be sprayed and painted.
Aluminum plate/AL 1.0/1.2/1.5/2.0/2.5/3.0 110-136RmMPa
170~305RmMPa
AL6061T6=27
Glossy / brushed 1060H24/3003/
5052/6061
2.75KG/㎡
characteristic 1. The metallic white luster, the surface is easy to oxidize and corrode, so the surface is often pasted with PVC protective film.
2. Surface treatment: sandblasting, wire drawing, or polishing, anodizing (non-conductive, can be dyed in various colors); chromate oxidation (also known as conductive oxidation, there are two types of primary color and golden yellow)
Copper plate/CU 1.0/1.2/1.5/2.0/2.5/3.0 / Glossy / brushed H62 8.9KG/㎡
characteristic 1. H62 (that is, four or six brass), has good mechanical properties, good plasticity in hot state, plasticity in cold state, good machinability, easy brazing and welding, corrosion resistance, and various deep drawing The force-bearing parts manufactured by bending and bending are a widely used brass variety.
2. Surface treatment: Brush a layer of transparent paint on the brass surface to prevent outdoor atmospheric corrosion of brass. In addition, passivation treatment and electroplating treatment (copper plating, nickel plating, chrome plating) are often used.

Material Description

JRPanel One-stop Professional Sheet Metal Processing
Manufacturer Service for Sheet Metal

Processing/Spraying/Silkscreen/Assembly. One-stop Platform , Smart Online Quote

Laser Cutting & CNC Punch

Plate thickness supported by laser cutting
Notice of Laser Cutting

In sheet metal processing, laser cutting is often used for: blanking, cutting shape, secondary cutting, cutting line, cutting special-shaped holes, etc.Machining accuracy ±0.1mm

When cutting the bottom hole of the hardware,it must be increased by 0.05mm, because there will be tiny contacts at the start and end of the cutting
When cutting the craft hole, the width is generally greater than 0.5mm, the smaller the burr, the more obvious.
In laser processing, the chamfer must be ≥0.5mmto prevent scorching.
CNC Punch

Common uses of CNC punching machines: blanking, punching mesh, punching convex hull, trimming, punching bumps, beading, crimping, punching, etc. Machining accuracy ±0.1mm
Hole extraction: The minimum distance between the NCT extraction hole and the edge is 3T, the minimum distance between two extraction holes is 6T (unless there is a special avoidance, which can be reduced), the minimum safety distance between the extraction hole and the bending edge (inside) is 3T+R, if it is too small, it must be crimped.
Generally, the height of NCT punch and half shear does not exceed 0.6T, if it is greater than 0.6T, it will easily fall off.
The distance between the hole and the edge should not be too small, the allowable value is shown in Table 1; the minimum hole diameter of NCT stamping is shown in Table 2: (T means material thickness)

Table 1: Material Punching Round Hole Punching Square Hole
Hard Steel 0.5T 0.4T
Mild Steel/Brass 0.35T 0.3T
Aluminum 0.3T 0.28T
Table 2: Material Punching Round Hole Punching Square Hole
Hard Steel 1.3T 1.0T
Mild Steel/Brass 1.0T 0.7T
Aluminum 0.8T 0.6T

Bending Process

Bending is the processing of changing the angle of the plate, such as bending the plate into a V shape , a U shape, and so on. In general, there are
two methods for bending sheet metal: One method is bending by die mould; The other is bending by bending machine. At present, JRPanel are
mainly processed by bending machines.

Common folding knife shapes & Common V groove shape
The minimum safety distance from the hole to the bending edge

The above dimensions are the distance from the hole to the inner bending edge. If it is less than this distance, bending will cause hole deformation. In this case, other processing methods can be used to solve the deformation problem:
①Bend first, then use laser to cut holes ②Pre-press line treatment ③Directly open mold production ④Eccentric bending ⑤Change to smaller V groove
However, most of this will increase the processing cost. When conditions permit, these minimum safety distances should be met as much as possible when designing.

Welding Process - Welder

It is a manufacturing process and technology for joining metals or other thermoplastic materials (such as plastic) by
heating, high temperature or high pressure.

  • Argon arc welding machine

    Mainly for welding stainless steel, galvanized sheet, thin iron sheet, aluminum sheet
  • Carbon dioxide shielded welding

    Mainly for some thick iron plates, and welding of large chassis
  • Inverter argon arc welding machine

    Currently mainly for aluminum plate welding
  • Butt welding machine

    Cold welded plate to plate seamless butt welding
  • Screw welding machine

    Mainly for box body and flat plate welding stud

Common Surface Treatment

Surface treatment is a process of artificially forming a surface layer on the surface of the substrate material that is different from the
mechanical, physical and chemical properties of the substrate. Its purpose is to meet the product's corrosion resistance, wear
resistance, decoration or other special functional requirements.