Precision linear guide rail for injection molding machines

• Customization: Available
• Type: Injection Blow Molding
• Structure: Vertical and Horizontal Composite
• Model NO.: linear guide
• Plastic Type: Metal mechanical components
• Plasticizing Way: Metal mechanical components
• Clamping Way: Guide rails vary by clamping type
• Automation: Fundamental power transmission parts
• Computerized: Smart functionality expansion
• Certification: CE, ISO9001:2008
• Surface Treatment: Ceramic coating
• Guide Rail Length: Customizable
• Repeat Positioning Accuracy: ±0.005mm
• Accuracy Grade: C3
• Transport Package: Wooden Box
• Specification: by model parameters
• Trademark: Ningshing
• Origin: China

Product Description

Product Description

Precision Linear Guide Rails for Injection Molding Machines

Our high-performance linear guide rails are engineered to meet the rigorous demands of modern injection molding operations. Manufactured from hardened SUJ2 bearing steel with optional stainless steel (SUS440) for corrosive environments, these precision-ground rails deliver exceptional wear resistance and long service life exceeding 50,000 operating hours.

±0.005mm/m ultra-precision(C3 grade)

30kN heavy-load capacity for stable clamping

40% lower friction with ceramic coating technology

Material

1. Guide Rail Material

High-Carbon Chromium Bearing Steel (e.g., GCr15/SUJ2)

Industry standardwith high hardness (HRC58-62)and superior wear resistance.Suitable for high-load, high-precision applications after quenching and precision grinding.
Stainless Steel (e.g., 440C/304)

Used in corrosive or humid environments (food/medical industries).Slightly lower wear resistance than bearing steel.
Alloy Steel (e.g., 42CrMo)

Case-hardened for a tough core, ideal for heavy-impact conditions.

2. Slider & Rolling Element Material

The slider typically features a cast iron or steel housing, with internal rolling elements (balls/rollers) made of bearing steel or ceramic.Ceramic balls are preferred for high-speed applications(reduced weight, high-temperature resistance), though at a higher cost.

3. Surface Treatment Technologie.
Hardened Layer:Induction hardening or hard chrome plating(0.05–0.1mm) for wear resistance.
Anti-Corrosion Coatings:Black oxide or PTFE coating for rust prevention in harsh environments.

Main specification and technical parameter

Linear Guide Technical Specification Table for Injection Molding Machines
Category	Parameter	Technical Specification	Customer Value
Precision	Repeat Positioning Accuracy	±0.005mm (Grade C3)	Reduces flash, improves part consistency
	Straightness	≤0.01mm/1000mm	Extends mold life, lowers maintenance
Load Capacity	Dynamic Load Rating	30kN (Roller Type)	Supports stable clamping for large machines (2000T+)
	Static Deformation Resistance	80kN (no permanent deformation)	Withstands high-pressure injection impacts
Speed Performance	Maximum Speed	5m/s (Ceramic Ball Type)	Shortens cycle time, boosts productivity
	Acceleration	0.5G (Servo Motor Compatible)	Enables high-speed thin-wall production
Durability	Rated Service Life	100,000km (L10 Life)	Reduces replacement frequency
	Surface Hardness	HRC60 (SUJ2 Steel Hardened)	Resists metal particle abrasion
Environment Adaptability	IP Rating	IP67 (Dust/Water Proof)	Suitable for humid/dusty workshops
	Temperature Range	-30℃~+150℃ (200℃ High-Temp Option)	Compatible with hot runner systems
Cost Efficiency	Cost-Effective Solution	45# Steel Base + Hard Chrome Plating (30% cost saving)	Budget option for small-medium machines
	Long-Term TCO	40% lower 5-year cost (vs competitors)	Saves total ownership cost through longevity

Application

1.Moving Platen Guidance: Controls the linear motion of mold opening/closing, ensuring clamping accuracy and parallelism to minimize flash and product defects. High-speed injection molding machines require linear guides with high rigidity and wear resistance to withstand frequent starts/stops and impact loads.
2.Injection Unit Movement: Drives the reciprocating motion of the injection unit for precise melt delivery, demanding low friction and high dynamic response.
3.Ejection System: Provides linear motion for ejector pins to ensure smooth demolding, requiring dust-resistant design and long-term stability.
4.Auxiliary Motions: Includes applications like robot transfer and mold adjustment devices, where guide selection depends on load capacity and operational precision.

The services we can provide

1# Over a decade of pioneering Independent R&D, driving innovation and advancement in our product offerings.
 
2# Proud holders of a National Innovation Patent Certificate, a testament to our commitment to innovation and quality.
 
3# Our robust sales performance, with annual sales volume exceeding 200 sets across China, underscores our market leadership.
 
4# Efficiently cuts through materials like Steel Plate, Flat Bar, Ground Flat, and P-plate, demonstrating its versatility and high performance.
 
5# Fast sawing speeds coupled with high efficiency result in minimal material wastage, complemented by free side milling capabilities.
 
6# Trusted by leading mills such as Baosteel, Nangang, Xiangtan (XISC), TISCO, and more, showcasing our industry-wide trust and reliability. 
 
7# Serving diverse industries, including Engineering Machinery, Mold Base, Wind Power, and others, illustrating our wide-ranging applicability.
 
Ningshing Precision Machinery Since 1992, we have been committed to delivering comprehensive One-Stop Solutions to our clientele, transforming the landscape of Tool Steel, Die Steel, Alloy Steel, Mold Base, Machining Parts, and CNC Machine innovations with our expertise and dedication.

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