Senlan Precision Parts Co.,Ltd.
SENLAN PRECISION PARTS CO.,LTD
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Tungsten Carbide Die Punching Pins Ejector Punch For Stamping Moulds
Precision Punch capabilities include but are not limited to:
1. Manufacturing Diameters from .004 to 1.250 inches while holding tolerances down to .0001 inches.(base on your drawing)
2. Manufacturing Lengths up to 12 inches long.
3. Surface Finishes down to 2 micro (Ra or RMS)
4. Manufactured in metric also for specials and custom parts.
5. Straightness up to .0004 T.R.I., depending on part design could be tighter.
Product Detail of Stamping Punch Pins
| Material | Tungsten Carbide |
| Hardness | 60-80HRC or Depend on the material |
| Heat treatment | Available |
| Service | Made-to-order |
| Surface treatment | TiCN, TiN, Aitain, Ticrn, nitriding , Black oxygened, Black coating etc available |
| Closest tolerance | + - 0.01mm |
| Polishness | Ra0.6 |
| Axiality | 0.005mm |
| Verticality | 0.005mm |
Die punch pin manufacturing process
1. Drawing, cutting
The raw materials that have passed the test are drawn into a desired diameter size by a wire drawing machine, and then cut into a rod-shaped punching pin blank of a fixed length.
2. Heat treatment
Before the heat treatment, the punching blank is firstly straightened on the straightening platform with a dial gauge, and then placed in a high-frequency electric furnace or a salt bath furnace to be heated to 800-1300 degrees Celsius for 2 to 5 minutes. After oil quenching and hardening, the tip hardness of the quenching heat treatment can reach Hv590-800. Then the low temperature tempering treatment is carried out.
3. Grinding processing
The punching pin is clamped on the spring collet of the machine tool, and the grinding forming process is separately performed according to the angular requirements of the various needle bases of the punching pin.
4. Polishing
Polishing is to clean the surface of the oil, rust, etc., and clean the surface.
5. Inspection, storage
According to the required index, the qualified ones can be packed into the warehouse.
Service
(1) Team work-We have experienced workers, programmers, QC, sales and management team. Every member is firmly connected to well fulfill customers' orders.
(2) Skill–We hold skill explore training every month . Engineers, programmers and workers share new ideas and skills together to continuously improve machining skill.
(3) Excellent communication – Sales members are fluent English speaking, proactive and have knowledge about machining, They can easily understand what you want.
Main products
1.Core pin,cavity pin,insert pin etc
2.HSS punch ,Precision punch ,Special-shaped punch
3.Ejector pins,ejector sleeve,two-stage ejector pins etc
4.Guide pillars ,Guide bushings ,Guide post set
5.Slide Core Units,Latch locks,locating Series
Q:Are you trading company or manufacturer?
A:We are factory.
Q:How long is your delivery time?
A: Generally it is 10-20 days if the goods are not in stock, it is according to quantity.
Q:What is your quote elements?
A:Product standard: model + size, or customer Drawing.
Q:How can you ensure the quality?
A:We have QC department to control the quality from the begining of production until goods finish.
Q:If you make poor quality goods,will you refund our fund?
A:As a matter of fact, we wont take a chance to do poor quality products. Meanwhile, we manufacture goods quality products until your satisfaction.
Q. Do you test all your goods before delivery?
A: Yes, we have 100% QC test and QC report for mold parts before delivery.
Q. Can you produce according to the samples or drawings?
A: Yes, we can produce parts by your samples or technical drawings.
