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Ejector Punches Ejector Punches
Ejector Punches Ejector Punches


Ejector Punches

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Name: ejector punches SKH51, SKD61 for stamping die, ejector punches for stamping bed, blanking punch, die punch, special shape ejector punches, precision punch

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The Role Of Ejector Punches

Die Punch-also called punch pin or ejector punch, is installed on the stamping die to make continuous blanking operation and, as a result , make the separation or plastic deformation of the processed materials so as to obtain the required 

finished or semi-finished products.

Usual materials: The punch is generally made of high speed steel, spring steel and tungsten steel.

High speed steel punch and spring steel punch are the most commonly used. The high speed steels are Cr12MoV, SKD11, SKD61, SKH51, ASP23, etc. The spring steel materials are SUJ2, GCr15, etc. Tungsten steel material is generally used in high-level blanking and shearing die. Because of its high cost, and the need of complex machining technology, the use of tungsten steel punch is a little limited to some degree, it’s not widely used.

Usage: According to the use, the punches can be divided into pilot punch, burring punch, hexagonal punch, elliptical punch, sectorial punch, special shape punch…etc.

Punch surface treatment: usually we choose titanium plating or chrome plating.

The advantages of titanium plating treatment: after plating, the dimensional precision is easy to control due to the thin coating thickness 2 ~ 3μm. It’s feature is that the deformation is small, the surface friction coefficient is reduced, the surface hardness is increased, the wear resistance is enhanced, thus delaying the service life of the mould and die. The types of titanium layer are TiN, TiCN, TiAIN, TiCRN…etc.

The advantages of chromium plating: wear resistance increases, but the disadvantage is that the dimensional accuracy and consistency after plating is poor. In order to ensure the use requirements, further processing is needed and the cost increases.

Ejector Punches SKH51, SKD61 Application

  • Applied for punching hole in metal stamping machine bed or high speed stamping die for quantity processing.

  • The common use in the plastic mold to separate the products from the mold.

Ejector Punches SKH51, SKD61 Customization

  • Material: SKH51, SKD61            

  • Hardness: 48-52HRC

  • Tolerance: +/-0.01mm - +/-0.005mm

  • Application: the stamping die, the plastic moulds, the die casting moulds

You need to provide clear drawings and requirements so as to for our engineers understand thoroughly. We can also supply precision mechanical parts as below:

Non-Standard Mechanical Parts,

Assemble Line Punch,

Assemble Line Head Punch,

Assemble Line Connecting -Adapter Parts,

Assemble Line Mounting Plate Components,

Assemble Line Metal Gripper,

Assemble Line Guide Sleeves,

Assemble Line Orientation Inserts,

Assemble Line Flange Connector parts,

Assemble Line Device,

Orientation Parts for Assemble Line,

Measurement Parts for Assemble Line,

Inspection Parts,

Non- Standard Metal Dividing Cutters Assemble Line Tooling…

Ejector Punches SKH51, SKD61 Features

  • Good consistency, stable quality, precision tolerances +/-0.01mm to +/-0.005mm.

  • Almost zero repair rate, and defective products all replacement or repair for free due to our fault within 1 year warranty period.

  • A-type punch, hexagonal punch, elliptical punch, fan punch, special-shaped punch, material customized etc.  

  • Surface treatment: Titanium nitride(TiN), TiCN, titanium plating, etc

  • ISO quality assurance system.

  • Fast after-sale respond.

Ejector Punches SKH51, SKD61 Packaging

Inner: bubble bag, PE bag or plastic seal with anticorrosive oil plus outer carton box, or other safe package.

mold punch package-MWMECHPARTS precision punch- MWMECHPARTS outer package-MWMECHPARTS

Ejector Punches Surface Treatment

Die Punch Ejector Punch Surface Treatment Methods

The main surface treatment methods of die accessories are: electroplating, spraying, polishing, anodizing, blackening, etc.

The function is to improve the appearance, the corrosion resistance and wear resistance of the mold parts. Each has its own unique use environment and condition as below:

  • Steel Material Electroplating

Electroplating-Electroplating is a method of treating the surface of precision mold components with a layer of metal film. Different metals, such as chromium, zinc, or nickel, are used as coatings in different utility environments.

Usage: It is used for parts with low dimensional accuracy requirements. Because the thickness uniformity of electroplating is not easy to control, the accessary processing is required to ensure the accuracy when the dimensional accuracy is high.

  • Steel Material Spraying

Spraying refers to the treatment method of spraying a layer of coating on the surface of precision mold parts.

Usage: It can be used as the final surface treatment for parts requiring high dimensional precision and high wear resistance.

  • Steel Material Polishing

Polishing refers to treat the surface into a smooth, flat, burr free state.

Usage: To improve the appearance, the micro roughness and wear resistance of the mold and die parts.

  • Common Steel Blackening

Blackening refers to the method of treating the surface of the mold parts into a layer of black oxide film.

Usage: Ordinary steel as a kind of mold parts material, if it’s performance needs and corrosion resistance requirements are not high, blackening treatment can be cost saving.

  • Aluminum Anodizing

Anodizing- Anodizing refers to treat the surface of die parts into a layer of oxide film.

Usage: Because of its low hardness, usually used as an auxiliary mold accessories.

You may choose surface treatment according to your needs. Below are some usual methods we use.

surface treatment-MWMECHPARTS


Q: What service can you do?

A: OEM/ODM. Free samples available after price confirmed, but you need to share the sample freight. We produce the parts per customers'drawing or sample. Concerning the protection of customers'intellectual property, we don't sell our customers'same product to the third party.

Q: What data should the customer provide for a precise quotation?

A: The drawings or samples, quantity, tolerance, standard, material, surface finish, other special requirements, etc.

Q: What're your delivery methods?

A: DHL, EMS, UPS, land transport or sea freight available.

Q: How do you assure the quality control?

A: Full inspection with test report and material composition certificate for each order and 1-year after-sale service for free repair or replacement for deficit products. Almost zero repair rate and defective products all replacement or repair for free.

Q: How long is your lead time?

A: 10-30days up to the quantity.

Q: what surface treatments can you deal with?

A: Titanium nitride (TiN), TiCN, titanium plating, blackening, carburize, zinc plating, zinc coating,  galvanization, chrome plate, etc.

Q: what's your payment term?

A: T/T, L/C, western Union, PayPal, etc.

Focus on the resolutions and the figures behind 0.000mm.

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 Add.: No.1518, F15, Building 1, Qianhai Life Financial Center, Jinqiao 3rd Road 418#, Chanba Ecological District, Xi’an, Shaanxi, China.

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