Last Updated： Aggregation Period:Sep 10, 2025～Oct 07, 2025
This ranking is based on the number of page views on our site.
Last Updated： Aggregation Period:Sep 10, 2025～Oct 07, 2025
This ranking is based on the number of page views on our site.
Last Updated： Aggregation Period:Sep 10, 2025～Oct 07, 2025
This ranking is based on the number of page views on our site.
1～9 item / All 9 items
Manufacturable with a minimum diameter of Φ0.02mm, capable of 1-micron tolerance and lapping processing.
Various types of pins for jigs, such as core pins, punch pins, pilot pins, ejector pins, and reference pins, can be manufactured with a minimum diameter of Φ0.02mm. We also accommodate tolerances of 1 micron and grinding processes. For more details, please contact us or refer to our catalog.
Ultra-high precision core pins using advanced technology.
Our ferrules for optical communication connectors and capillaries for semiconductor bonding are produced using ceramic injection molding. To enhance dimensional accuracy, we have developed and manufactured high-precision core pins in-house for use in the injection molding process. With this technology, we manufacture and supply core pins and stepped pins tailored to our customers' needs. We use several types of diamond wheels with different grits on ultra-fine particle cemented carbide and finish them with high precision using in-feed plunge machining.
![[Examples of Production by Purpose] Core Pin (Tip 0.4×0.4)](https://image.mono.ipros.com/public/product/image/637/2000613146/IPROS39175646396961415980.png?w=280&h=280)
The tip is only 0.4 millimeters square in size! It has a stepped precision of ±0.003.
This is an example of a part called a core pin used in the molding of connectors. During the molding of connector components, this pin is inserted into the mold for shaping, and even such fine pins are designed with materials that can withstand repeated use. This core pin is actually used at a length of about 6 millimeters from the tip, and the root's shape is designed to accommodate the profile processing grinding wheel. By using a smaller diameter grinding wheel, the R size of the shape can be minimized, allowing for the precision machining of such fine pins through grinding. The tip is only 0.4 millimeters square, yet it has a precision of ±0.003 and features a step, showcasing the strengths of profile processing. 【Manufacturing Example】 ■Material: HAP10 (Powdered High-Speed Tool Steel) ■Product Size: 4×4×53 *For more details, please refer to the PDF document or feel free to contact us.
Stable productivity! Reliable quality! We deliver peace of mind to areas that cannot be seen.
Our company has been focusing on water hole processing, which has seen a continuous increase in demand at production sites in recent years, and we perform over 20,000 hole processes monthly. The quality required for cooling holes in aluminum die-cast mold components and ejector pins has become increasingly complex year by year due to technological innovations and precision advancements. To meet these quality demands, we have introduced not only dedicated grinding machines for gun drills but also dedicated grinding machines for SR drills, promoting quality improvement. [Features] - Stable production capacity with over 20,000 hole processes monthly - More than 14 dedicated machines and gun drills in our inventory - Introduction of dedicated grinding machines for SR drills and ultra-fine endoscopes *For more details, please refer to our catalog or feel free to contact us.
Effective in reducing pin breakage risk! Over three times the lifespan of conventional core pins (compared to our company).
The Hybrid Core Pin (R) is a next-generation core pin that employs friction welding technology to join dissimilar metal materials. For the tip portion that comes into contact with molten materials such as aluminum, we use YXR33, which has excellent high-temperature strength characteristics, and for the base portion, we use DAC, which has superior toughness. By joining these two materials with different properties using friction welding, we have achieved a core pin that is significantly more resistant to breakage compared to conventional ones. 【Features】 ■ Excellent durability ■ Compatible with cooling hole types ■ Reduction in total maintenance costs *For more details, please download the PDF or feel free to contact us.
Catalog sales of parts for plastic molds - standard parts - core pins
The catalog for plastic mold components "Standard Parts Core Pins" allows you to order by simply selecting dimensions from the specification table among various types (no drawings required). We accept orders with the shortest delivery time of "same-day shipping." Additionally, extra options such as "tab cut," "dimension changes," and "shape changes" can also be ordered using codes.
[Exclusive to Ipros] Trial campaign for coating molds! Please take advantage of it for extending the lifespan of molds and simplifying maintenance.
●Our company utilizes the latest high-performance machines to meet various customized needs such as simple pins, shaped pins, and cooling deep hole pins. ●By conducting all processes in-house, from manufacturing to heat treatment, nitriding, and coating, we achieve quality, cost, and delivery times that satisfy our customers. *Production is made to order. *If you place an order through Ipros during the campaign period, you will receive a complimentary gift! ■Campaign Target Metals Die-cast molds, low-pressure casting molds ■Campaign Period August 1 - September 30 ■Coating Types Relion CL (film for improved resistance to melting and release), Relion ATL (melting-resistant film) Relion BZ (high-temperature heat-resistant film), Relion OZ (film for improved resistance to galling and seizure + melting resistance) ■Campaign Prices For weights up to 1 kg: ¥1000 each For weights from 1 kg to 30 kg: ¥1000/kg For weights from 30 kg to 80 kg: ¥800/kg For weights from 80 kg to 250 kg: ¥500/kg ■Contact For inquiries, please contact Nagahashi at the Industrial Machinery Sales Department. TEL 0545-36-0075
Precision molds & ultra-precision mold components
Our processing technology is utilized in precision molds and the precision parts incorporated into those molds.
Processing and treatment are carried out through die-sinking electrical discharge machining and polishing. Examples of production for the semiconductor industry.
WTM Corporation has a track record of sourcing precision machined parts of Japanese quality from overseas for 18 years. We respond with heartfelt service to "a wide variety and from a single item," managing everything from procurement sources to processes and inspections in a comprehensive manner. This time, we would like to introduce a case study of manufacturing core pins for molding used in semiconductors. The processing and treatment were carried out through electrical discharge machining and polishing. The precision was achieved with a front groove taper of 0.5 degrees, and the material used was HPM31 (HRC56-58). 【Project Overview】 - Product Name: Core Pin for Molding - Material: HPM31 (HRC56-58) - Size: 14×12×40mm - Processing/Treatment: Electrical Discharge Machining and Polishing - Industry: Semiconductor < WTM Supporting Solutions for Manufacturing Challenges > For more details, please view our company brochure by clicking "Download Catalog" below, or feel free to contact us.
