Precision Stripper Bolts for Plastic Molds | Hardened Shoulder Screws & Bolts

Product Overview

Senlan Precision supplies STD material precision plastic stripping bolt screws for injection molding applications. These components are used to support controlled stripping and demolding operations in plastic molds. Manufactured strictly on a customized / OEM / Built-to-Print basis, the stripping bolts are engineered for dimensional accuracy, stable mechanical performance, and long service life in high-cycle molding environments.

Key Features & Technical Advantages

• Manufactured from STD tool steel or specified equivalent material

• Stable mechanical strength and wear resistance for repeated stripping action

• Precision CNC machining ensures accurate thread form and fit

• Consistent concentricity and surface quality for smooth mold operation

• Suitable for standard and non-standard stripping bolt designs

• Produced strictly according to customer drawings and technical specifications

Application Scenarios / Industry Applications

• Injection molds for plastic bottle caps and closures

• Packaging molds requiring mechanical stripping systems

• Multi-cavity molds with synchronized demolding mechanisms

• Mold maintenance, refurbishment, and spare part replacement

• Plastic molding systems using stripper plates or stripper rings

Mold Structure & Design Description

Plastic stripping bolt screws are typically installed between stripper plates and mold bases, transmitting controlled mechanical force during mold opening. Proper dimensional accuracy and material stability are essential to ensure smooth stripping motion, reduced wear on mating components, and consistent demolding performance across long production cycles.

Manufacturing Capability & CNC Machining Capacity

Senlan Precision operates advanced machining equipment to support high-precision mold components:

• MAKINO CNC machining centers (Japan)

• HARDINGE CNC lathes (USA)

• CNC turning, CNC milling, thread machining, and surface grinding

• Optional heat treatment and surface finishing based on application needs

Typical achievable tolerances range from ±0.003 mm to ±0.01 mm, depending on part geometry and functional requirements.

Custom Development / OEM Cooperation Process

1. Review of customer drawings and stripping system requirements

2. Confirmation of material grade, hardness, and surface condition

3. Precision CNC machining and in-process inspection

4. Optional heat treatment or surface treatment

5. Final dimensional inspection and functional verification

6. Packaging and export shipment

All projects follow a strict Built-to-Print OEM workflow.

Quality Control & Export Experience

• Incoming material verification and traceability

• Dimensional inspection at critical machining stages

• Thread accuracy and surface finish checks

• Final inspection prior to shipment

• Extensive experience supplying mold components to international customers

Related Products Recommendation

• Stripper plate guide bolts and sleeves

• Mold ejector pins and stripper pins

• Threaded core inserts and mold fasteners

• Multi-cavity mold spare parts

FAQ – Technical & Procurement

Q1: Can stripping bolt dimensions be customized?
Yes. All stripping bolts are manufactured strictly according to customer drawings or samples.

Q2: What material options are available besides STD steel?
Alternative tool steels can be used upon request, based on application requirements.

Q3: Are these bolts suitable for high-cycle molds?
Yes. Proper material selection and machining ensure stable performance in high-cycle injection molding.

Q4: What tolerances can be achieved?
Typical tolerances range from ±0.003 mm to ±0.01 mm, depending on design complexity.

Q5: Do you support small batch or trial orders?
Yes. Both small batch and mass production orders are supported.

Get a Quote

For pricing, lead time, or technical evaluation of STD material precision plastic stripping bolt screws, please contact Senlan Precision with your drawings or specifications. Our engineering team will provide a detailed quotation and manufacturing assessment.