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Cr12MoV Mold Steel Precision Mold Angle Lifter Slide Assembly
- Material: Cr12MoV / 718H / P20 Mold Steel
- Hardness: HRC 30–52 (Optional full heat treatment)
- Tolerance: ±0.002 mm
- Surface Finish: Fine Ground Anti-Wear Surface
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High-Precision Angle Lifter Mechanical Design
Integrated wedge-angle lifter structure realizes reliable side core pulling for plastic parts with internal undercuts, avoiding forced ejection deformation of finished products. Dual parallel guide pin shafts ensure stable linear sliding movement with zero jitter during mold opening/closing cycles. Precision-machined limit stop blocks control accurate stroke travel, eliminating over-travel damage to mold cavities and cores. Evenly distributed assembly bolt holes adopt tight positional tolerance for fast, repeatable mold installation and alignment.
Monolithic split base frame adopts thickened wear sliding contact surfaces, greatly reducing friction wear under long-term reciprocating sliding, maintaining stable core pulling accuracy over millions of injection shots.
High Toughness Wear-Resistant Cr12MoV Mold Steel Construction
Select grade Cr12MoV mold steel delivers superior mechanical performance for high-frequency sliding mold components:
- Cr12MoV variant with full quenching & tempering treatment achieves high surface hardness, anti-abrasion against glass fiber reinforced plastic friction
- Excellent grindability to achieve ultra-smooth sliding contact surfaces, minimizing sliding friction resistance
- High impact toughness to resist fatigue cracking under repeated mold clamping impact loads
- Compatible with surface hardening treatments: gas nitriding, DLC coating to extend service life Suitable for medium & high volume injection molding products with internal undercuts, including automotive plastic parts, electronic housings and daily consumer goods.
Custom Mold Slide Engineering Support
- Custom lifter wedge angle, core pulling stroke, overall assembly dimensions and limit structure based on customer product CAD drawings
- Surface hardening upgrades: Gas Nitriding, DLC Anti-Friction Coating, Precision Surface Grinding
- DFM sliding mechanism consultation: stroke optimization, wear gap compensation, cooling layout matching
- Fast prototype slide assembly sampling and mass production batch delivery
Key Features & Advantages
- Stable Angle Core Pulling: Wedge lifter design smoothly releases internal undercuts without product deformation or scratch marks.
- Dual Guide Shaft Anti-Shake Structure: Parallel guide pins eliminate lateral deflection during sliding to maintain micron-level positioning precision.
- Built-In Stroke Limit Blocks: Precisely controlled core pulling travel prevents collision damage to mold inserts.
- Heavy-Duty Anti-Wear Sliding Base: Thickened contact surfaces + optional surface hardening drastically lower wear rate for long-run mass production.
- Full Customizable Mechanism: Adjustable lifter angle, stroke length and mounting layout to match unique undercut plastic product requirements.
Technical Specifications
| Parameter | Specification |
|---|---|
| Base Mold Material | Cr12MoV Cold Work Steel, 718H Pre-hardened Steel |
| Alternative Materials | P20, S136 Stainless Steel, NAK80 |
| Hardness | HRC 48–52 (Cr12MoV heat treated); HRC 28–32 (718H raw) |
| Dimensional Tolerance | ±0.002mm for sliding fit clearance, hole position & assembly flatness |
| Parallelism of Guide Shafts | ≤0.002mm per 100mm length |
| Sliding Surface Roughness | Ra ≤0.4μm precision ground finish |
| Manufacturing Processes | 5-Axis CNC Milling, Precision Surface Grinding, Drilling, Heat Treatment, Assembly Fitting |
| Surface Treatments | Gas Nitriding, DLC Anti-Friction Coating, Hard Chrome Plating |
| Customization | 100% Customized via 3D CAD Drawings & Product Samples |
Applications
Automotive Plastic Components
Used as internal undercut slide assemblies for automotive interior trim, plastic connector housings and dashboard brackets. High wear-resistant Cr12MoV material adapts to glass-filled automotive plastics, stable angle lifter avoids undercut tearing during ejection.
Consumer Electronics Housings
Applied for injection molding of charger casings, Bluetooth device frames and battery shell plastic parts with internal snap undercuts. Precise stroke limit ensures no scratch damage to glossy electronic part surfaces.
Household & Cosmetic Packaging
Ideal for cosmetic bottle caps, home appliance plastic bases and toy structural shells with internal buckle structures. Smooth sliding movement improves surface finish of consumer cosmetic products.
Medical Plastic Disposables
S136 stainless steel slide variant meets hygiene standards, suitable for medical instrument plastic shells with internal undercuts, resisting corrosion from medical plastic additives.
Industrial Automation Plastic Parts
Deployed for sensor housings, wiring terminal plastic brackets and automation equipment structural plastic components. High toughness slide assembly withstands continuous high-cycle mold production for industrial precision plastic parts.
