SKD11 Gear-Driven Slide Mold Unit

High-Precision Engineering

Built-in rack-and-pinion drive delivers uniform, smooth linear sliding force for consistent side core retraction. Modular wear inserts protect the main base frame from friction damage, allowing quick part replacement without reworking the whole unit. Standardized base mounting holes match universal mold frame layouts, drastically cutting mold assembly and trial adjustment time.

The interlocking stop blocks control precise slide stroke, avoiding over-travel impact and ensuring repeatable forming cavity positioning for every molding shot.

Ultra-Wear Resistant SKD11 Steel Construction

Fabricated from premium SKD11 cold work tool steel, this slide assembly delivers standout performance for high-volume production:

Exceptional abrasion resistance for millions of repeated sliding and gear meshing cycles
High compressive hardness with minimal plastic deformation under heavy clamping loads
Stable dimensional accuracy without thermal expansion drift during sustained mold cycles
Superior edge retention for fine gear tooth profiles, resisting chipping and blunting Ideal for abrasive-filled plastic molding and high-speed automated injection production lines.

Modular Customizable Structure

Fully configurable components tailored to molding requirements:

Custom gear rack length, slide travel stroke and clamping jaw profile
Interchangeable wear plate thickness and gear module sizes
Single or dual synchronized slide layout options
Optional ion nitriding or TiN hard coating for gear tooth contact surfaces

Key Features & Advantages

Extreme Wear Durability: SKD11’s high hardness drastically reduces gear tooth and slide surface wear in high-cycle mass production.
Precision Synchronized Motion: Zero-backlash rack-and-pinion drive delivers perfectly consistent core pull positioning shot after shot.
Low Maintenance Modularity: Wear plates and gear inserts are replaceable independently to avoid full assembly replacement costs.
Stable Long-Run Output: Minimal deformation ensures uniform molded part dimensions across tens of thousands of production cycles.

Technical Specifications

Parameter	Specification
Base Material	SKD11 Cold Work Tool Steel
Alternative Materials	S136, SKD61, D2
Heat Treated Hardness	HRC 60–64
Critical Fitting & Gear Tolerance	±0.001mm
Slide Parallelism & Tooth Pitch Accuracy	≤0.002mm
Surface Roughness	Ra ≤0.04μm (Ground/Nitrided)
Manufacturing Processes	5-Axis CNC Milling, Gear Hobbing, Jig Grinding, Wire EDM, Hardening & Tempering, Ion Nitriding
Surface Treatments	Ion Nitriding, TiN Coating, Precision Grinding
Customization	100% Supported via Drawings & Samples

Applications

Automotive

Used for side core pulling molds of automotive wiring connectors, plastic valve housings and interior structural brackets; SKD11 withstands high-cycle abrasive glass-filled plastic molding without rapid gear and slide wear.

Consumer Electronics

Applied in precision molds for miniature connector shells, battery lock components and thin-wall electronic frames; accurate rack-slide motion forms tiny internal undercut features with consistent dimensional repeatability.

Plastic Packaging

Ideal for threaded cap molds, cosmetic container side latch forming units and rigid packaging component molds; robust gear drive handles fast high-volume packaging molding cycles reliably.

Automation Molding Equipment

Deployed as standardized high-durability slide modules on fully automated injection molding lines, requiring minimal downtime and maintenance for non-stop mass production runs.