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Exact Tolerance 1.2379 Die Steel Nitriding Ejector Pin For Home Appliance Injection

Exact Tolerance 1.2379 Die Steel Nitriding Ejector Pin For Home Appliance Injection

Exact Tolerance 1.2379 Die Steel Nitriding Ejector Pin For Home Appliance Injection
Exact Tolerance 1.2379 Die Steel Nitriding Ejector Pin For Home Appliance Injection
Product Details:
Place of Origin: China
Brand Name: SENLAN
Certification: ISO9001
Model Number: EP-01
Payment & Shipping Terms:
Minimum Order Quantity: 1Pcs
Price: Negotiable
Packaging Details: Coated with Anticorrosive Oil, Packed in Carton Box
Delivery Time: 15Days
Payment Terms: L/C, D/A, D/P, T/T, Western Union
Supply Ability: 20000Pcs/Week
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Detailed Product Description
Material: 1.2312 Die Steel Product Name: Ejector Pins And Sleeves
Application: Automation/Medical/Daily Packaging Hardness: 54HRC
Delivery Time: 3-10 Working Days Treatment: Nitriding, Termpered, DLC, TIN
Tolerance: +/-0.005mm Standard: JIS, DIN, EN, ASTM, AISI
Market: Overseas Quality: High Precision
Size: Customized
High Light:

1.2312 Die Steel Ejector Pin


1.2379 Die Steel Nitriding Ejector Pin


54HRC Nitriding Ejector Pin

The Introduction Of Ejector Pin


Ejector pin are the “bouncers” of the injection molding world. they apply a force to eject a part from the mold, and in some cases can leave marks. … Once the mold is opened, the Ejector pin extend into the mold cavity, push the part out, and then retract, allowing the mold to close and be refilled.

The ejection of a plastic product is the last step in the plastic injection molding process. The quality of the ejection determines the quality of the plastic product. when the mold opens, the plastic product must be retained on the mold half (usually the core) with the ejector mechanism that is used to release the plastic product.


1. The ejector pin layout should make the ejection force as balanced as possible
The demolding force for complex structures is relatively large, so the number of ejectors should be increased accordingly.


2. The ejector pin should be set in effective places
The effective places include the rib, column, step, metal insert and other complex structures. The ejector pin on both sides of the rib and column should be arranged symmetrically as much as possible. In addition, try to ensure the ejector pin on both sides of the column position.


3. Avoid arranging ejector pinon the inclined surface or overstepping
The top surface should be as smooth as possible, and we should arrange it in the structural part of the rubber with better force.


4. Flat ejector pin should be chosen in some cases
In the deep rib (depth ≥20mm) or it is difficult to arrange the dome ejector pin, we should adopt flat ejector pins. When we use it, try the insert form to facilitate processing.


5.Avoid sharp and thin steel
When layout the ejector pin, we should avoid those sharp and thin steel. And the top surface of the ejector pin should not touch the cavity side.


6.Consider the distance between the ejector pin and the waterway
Avoid affecting the processing and water leakage of the waterway.


7.Consider the exhaust function of the ejector pin
In order to exhaust during ejection, it should be arranged in the part which is easy to form a vacuum. For example, in the larger plane of the cavity, although the packing force of the rubber part is small, it is easy to form a vacuum, which leads to an increase in the demolding force.


8.The ejector pins cannot be placed in some places
For plastic parts with appearance requirements, it can not be in the appearance surface, and we should adopt other ejection methods. For transparent plastic parts, it can not be arranged in the part that needs to transmit light.




About Us:


SENLAN Mold Part Co.,Ltd is specialized in manufacturing mold accessories which located in Guangdong, China.

We are committed to the R&D, manufacturing and exporting high precision mold parts and relevant products which are mainly under JIS, DIN, AISI standards. the products cover DME, DME-EOC,MEUSBURGER, HASCO, CUMSA, STRACK, RABOURDIN,PROGRESSIVE, SUPERIOR and other brands.

Currently we have 10 CNC machines, 8 EDM machines and 6 WEDM machines, most of them are from MAKINO, OKUMA, FANUC and SODICK, OKAMOTO Grinding machines, TAKISAWA Lathes and global-top class Hexagon CMM machines are also included.

With the goal of becoming a global leading supplier for one-stop mold parts and achieving sustained growth, we will continue to uphold the business philosophy of "win-win cooperation", creating long-term value for clients, staff and society.

Specification Of Ejector Pin:


Place of Origin

Guangdong, China

Brand Name


Model Number


Shaping Mode

Punching Mold

Product Material

1.2344, 2.2312, 1.2379, SKH-51,CR12


Over 15 Years





Design Softeare


Suface Treatment

Polishing, Nitriding, DLC, TIN, TICN, CRN


Machining Service









Delivery Time

3 Or 30days


Our Advantages:
1. Delivery On Time As Promised
2. Best Quality Material & Various Sizes.
3. Skilled Engineers & Advanced Technology
4. Prefect Quality Control System

5. Competitive Price

6. OEM, ODM And Non Standard Service

7. 24 Hours Instant Communication For The Service






Q1: Do You Provide Samples ? Is It Free Or Extra ?
A: Yes, we can offer you samples or raw material for your quality inspection, but you need to bear the cost of freight. For some products, you also need to pay for the samples.


Q2: How Can You Guarantee Quality?
A: Advanced Machine Equipment+ Mature Technology+ Skilled Workers ensure the quality of our products. Also our QC Department will check each piece before every shipment.

Q3: After-Sale Service
A: Contact us if you have any question after receiving the samples or products, we'll try our best to solve the problem until you are satisfied!


Q4: Standards




Contact Details
Senlan Precision Parts Co.,Ltd.

Contact Person: Jack

Tel: +8618666893015

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