1+1 Cavity Mold Large Sprue Side Gate TPU 55 Shore A Material 136 HRC48-52 Steel Plastic Distal Lead Mold

✅ 1+1 Cavity Dual-Purpose Design: Compact 1+1 cavity structure supports both sample trial and batch production, flexible for small-batch manufacturing and new product verification. ✅ Optimized for TPU 55 Shore A: Mold structure and cooling system professionally tuned for 55 Shore A soft TPU, maintaining excellent elasticity, soft touch and stable dimension of distal lead parts. ✅ Premium S136 HRC48-52 Steel: Corrosion-resistant S136 stainless steel with HRC48-52 hardness, anti-rust and wear-proof, ideal for clean production environment and long service life. ✅ Large Sprue & Side Gate Runner: Enlarged sprue ensures smooth melt flow for viscous TPU material; well-positioned side gate avoids damage to product appearance and structural integrity. ✅ High Precision Molding: Strict tolerance control for slender distal lead components, no deformation, no burrs, fully meeting the assembly and usage requirements of medical/electronic lead parts. ✅ Clean & Reliable Production: Rust-proof steel + optimized venting system keeps cavity clean, suitable for hygienic production of soft plastic lead accessories.

This is a professional injection mold customized for plastic distal lead components, adopting practical 1+1 cavity layout. It is equipped with large sprue and side gate runner system, specially developed for molding TPU 55 Shore A soft elastic material.

The core and cavity are made of high-quality S136 stainless steel after heat treatment to HRC48-52, featuring outstanding anti-corrosion and wear resistance. The whole mold is optimized targeting the characteristics of soft TPU and slender lead parts, effectively solving common defects like stretching, warpage and incomplete filling. The finished distal leads own stable softness, uniform size and smooth surface. This mold is widely used for producing connecting leads in medical devices, electronic equipment and related precision accessories.

Item	Specification
Mold Application	Plastic Distal Lead / Soft Connecting Lead Parts
Cavity Configuration	1+1 Cavity
Molded Material	TPU, Hardness: 55 Shore A
Core & Cavity Steel	S136 Stainless Steel
Steel Hardness	HRC 48-52
Runner & Gate	Large Sprue + Side Gate
Mold Life	800,000+ Shots under standard maintenance
Product Features	Soft elastic, anti-deformation, burr-free, stable size
Applicable Scenarios	Medical devices, electronic equipment connecting leads
Production Lead Time	30–40 Working Days
Quality Standard	100% mold trial, full dimensional inspection & appearance check

The 1+1 cavity design balances cost and productivity. It can be used for prototype testing, sample confirmation and formal small-batch mass production in one set of mold. It saves extra tooling cost and shortens project cycle for new product development.

S136 stainless steel with HRC48-52 high hardness delivers excellent rust resistance and chemical stability. It will not get oxidized or stained during long-term production, keeping the inner cavity clean. Meanwhile, its high wear resistance ensures consistent precision after hundreds of thousands of shots, perfectly fit for hygienic production requirements.

TPU 55 Shore A has relatively high viscosity. The large sprue provides sufficient and steady material supply to avoid short shots and material stagnation. The side gate is arranged on non-key surface areas, which will not affect the appearance and flexibility of slender distal leads, and simplifies post-processing work.

We optimize cooling channels and demolding structure according to the physical properties of 55 Shore A soft TPU. It effectively prevents the soft part from stretching, sticking to mold and permanent deformation during demolding. The final products maintain stable elasticity and soft touch all the time.

For long and thin distal lead parts, the mold adopts high-precision matching technology. All dimensions are strictly controlled to guarantee smooth assembly and reliable connection performance. No sharp edges or burrs, safe for daily use.

This mold is mainly applied to produce TPU distal leads and soft connecting parts for:

Q1: Why choose S136 steel for this distal lead mold? A1: S136 features great anti-rust and anti-corrosion performance, which keeps the mold cavity clean. Its high hardness also resists wear from long-term continuous production.

Q2: What is the characteristic of TPU 55 Shore A? A2: It is medium soft TPU with good elasticity, bending resistance and comfort touch, widely used for flexible connecting leads.

Q3: What is the advantage of side gate for slender lead parts? A3: Side gate will not leave obvious marks on main surface, and will not damage the soft structure of TPU parts, ensuring good appearance and performance.

Q4: Can you adjust TPU hardness or part size as required? A4: Yes. We can optimize mold structure and parameters to match different TPU hardness and customized part dimensions.