SKD61 Multi-Stage Guided Slide Mold Insert Assembly

High-Precision Engineering

Dual symmetric vertical guide posts deliver balanced vertical guidance, preventing slide tilt during horizontal core pulling. Multi-layer stacked slide structure enables multi-stage forming for complex stepped plastic part undercuts. Thread-driven central block offers adjustable slide stroke and locking positioning for repeatable molding precision shot after shot. Standard T-slot base mounting holes allow quick integration into standard mold base frames, cutting mold assembly and trial run time drastically.

Heat-Resistant SKD61 Hot Work Steel Construction

Crafted from premium SKD61 hot work tool steel, this assembly excels in high-temperature molding environments:

Outstanding thermal fatigue and shock resistance for long cycles at elevated mold temperatures
Low thermal expansion rate to preserve tight tolerance dimensions under continuous heat exposure
Balanced hardness and impact toughness to resist cracking from repeated core pull impact loads
Excellent adhesion performance for nitriding and hard coating surface treatments Ideal for automotive die casting, high-temperature filled plastic injection and mass automated molding production lines.

Modular Customizable Structure

Fully configurable components to match molding specifications:

Custom guide post diameter, slide travel distance and layered forming cavity profiles
Replaceable wear slide plates and threaded drive inserts for maintenance
Single or dual synchronized slide layout customization
Optional surface upgrades: ion nitriding, TiN hard coating, mirror polishing for forming surfaces

Custom Engineering Support

Full custom fabrication from customer CAD drawings or physical sample mold units
Material alternative options: S136 for anti-corrosion medical/transparent molding, SKD11 for ultra-high wear cold molding
Thermal stress simulation and mold cycle efficiency consultation
Rapid prototype sampling and volume mass production delivery schedules

Key Features & Advantages

High-Temperature Stability: SKD61 minimizes thermal expansion and fatigue failure for hot molding conditions.
Anti-Tilt Guided Motion: Dual large guide posts ensure perfectly horizontal, backlash-free core pulling movement.
Low-Cost Maintenance: Wear plates and threaded inserts are individually replaceable without full assembly disassembly.
Complex Undcut Capacity: Multi-stage stacked slide design forms intricate stepped internal part geometries in one molding cycle.

Technical Specifications

Parameter	Specification
Primary Base Material	SKD61 Hot Work Tool Steel
Alternative Materials	S136, SKD11, D2
Heat Treated Hardness	HRC 48–52
Critical Fitting Tolerance	±0.001mm
Guide Post Perpendicularity & Slide Flatness	≤0.002mm
Surface Roughness	Ra ≤0.05μm (Ground)
Manufacturing Processes	5-Axis CNC Milling, Jig Grinding, Wire EDM, Hardening & Tempering, Press Fitting
Surface Treatments	Ion Nitriding, TiN Coating, Precision Grinding
Customization	100% Supported by Drawings & Samples

Applications

Automotive

Used as multi-step core pull assemblies for automotive aluminum die casting molds and glass-filled plastic connector housings; SKD61 withstands sustained high mold temperatures without thermal deformation during high-volume auto part production.

Consumer Electronics

Applied in precision injection molds for miniature battery housing stepped undercuts, multi-port connector shells and thin-wall electronic structural frames; guided slide motion delivers consistent dimensional accuracy for tiny complex electronic geometries.

Plastic Packaging

Ideal for thick-wall cosmetic jar threaded core molds and multi-latch packaging component forming units; heat-resistant substrate handles fast cycle high-temperature injection of rigid packaging plastics.

Automated Molding Lines

Deployed as heavy-duty standardized slide modules on fully automated injection and die casting production lines, requiring minimal downtime and stable long-cycle core pulling performance for non-stop mass output.