Heavy-Duty Injection Mold Tail Plate-CNC-Machined High-Strength Clamping Component

• Customization: Available
• Type: Mold Parts / Injection Molding Machine Components
• Structure: Horizontally Loaded, Vertically Stressed
• Model NO.: Rear Plate
• Plastic Type: Metal Structural Component
• Plasticizing Way: Metal Structural Component
• Clamping Way: Static Support Structure
• Automation: Static Base Structural Component
• Computerized: Mechanical Component
• Certification: CE, ISO9001:2008
• Material Grade: QT500-7 / ZG270-500
• Flatness: ≤0.02mm/m per ISO 8512
• T-slot Standard: DIN 650 Series 38
• Clamping Force: 1000~1500T Compatible
• Weight: 1500kg±5%
• Transport Package: Wooden Box
• Specification: by model parameters
• Trademark: Ningshing
• Origin: China

Product Description

Product Description

Professional Injection Molding Machine Tailplate (Clamping Plate)

Our high-performance injection molding machine tailplates are manufactured from high-strength nodular cast iron QT500-7, precision-milled and stress-relieved through vibration aging to achieve ≤0.02 mm/m flatness. This eliminates flash and mold wear caused by uneven clamping force distribution. Compatible with all major brands. for 600T–1800T machines, featuring DIN 650 standard T-slots and Φ63mm ejector holes for seamless automation integration and quick mold changes.

Superior Durability: HB180-220 hardness with optimized rib structure ensures 50% longer service life than standard cast steel plates.
Precision Guaranteed: ≤0.02 mm/m flatness and ±0.05mm tie-bar hole tolerance prevent mold flash and ensure part consistency.
Global Compliance: ISO 9001 and CE certified, with full traceability and 15-day emergency delivery (includes CMM reports).

Material

The tailplate must exhibit high strength, rigidity, and wear resistance. Common materials include:

1.High-Quality Carbon Steel (e.g., Q235, 45# Steel)

Characteristics:Cost-effective, easily machinable. Strength and toughness can be enhanced through heat treatment (quenching and tempering).
Applications:Suitable for small-to-medium injection molding machines or cost-sensitive scenarios. Requires surface chrome plating or coating for rust prevention.
2.Alloy Structural Steel (e.g., 42CrMo, 35CrMo)

Characteristics:Chromium and molybdenum additives significantly improve strength, fatigue resistance, and impact tolerance, ideal for heavy-load operations.
Applications:Used in large injection molding machines or high-clamping-force models (e.g., automotive component molding).
3.Ductile Iron (e.g., QT500-7, QT600-3)

Characteristics:Excellent vibration damping and wear resistance, suitable for casting complex structures, but relatively heavy.
Applications:Precision injection molding machines requiring high vibration absorption or low-speed heavy-duty equipment.
4.Welded Structural Steel

Characteristics:Fabricated from steel plates, offering design flexibility and localized reinforcement, but requires strict internal stress relief.
Applications:Customized large tailplates or special structural requirements.

Injection Molding Machine Tailplate Specification Table
Category	Parameter	Technical Specification	Customer Value
Material Properties	Material Type	Ductile Iron QT500-7 / Alloy Steel 42CrMo	High strength, fatigue resistance, suits varied budgets
	Tensile Strength	≥500 MPa (QT500) / ≥1000 MPa (42CrMo)	Ensures structural integrity under clamping force
	Hardness	HB180-220 (QT500) / HRC28-35 (42CrMo)	Balances wear resistance and impact tolerance
Precision Metrics	Flatness	≤0.02 mm/m	Ensures mold fit, reduces flash
	Tie-Bar Hole Tolerance	±0.05 mm	Compatible with major brands, easy installation
	T-Slot Standard	DIN 650 / EUROMAP	Supports quick mold changes and automation
Process & Quality	Stress Relief	Vibration aging + annealing	Eliminates internal stress, prevents deformation
	Surface Treatment	Milling + grinding (Ra≤1.6μm) + anti-rust	Corrosion resistance, extends mold life
Compatibility	Suitable Machine Tonnage	600T~3000T	Covers small to large machines
	Brand Compatibility	Haitian, ENGEL, Chen Hsong, etc.	Hassle-free replacement
	Ejector Hole Standard	Φ50mm/Φ63mm/Φ80mm (optional)	Adapts to various ejection systems
Special Features	Structural Design	Rib-reinforced grid structure	30% higher rigidity, 15% weight reduction
	Sensor Interfaces	Optional (strain gauge/temperature sensor mounts)	Enables real-time monitoring and smart upgrades

Application

1.Mold Support and Fixation

The tailplate cooperates with the headplate (fixed platen) to secure both moving and fixed parts of the mold, ensuring precise alignment during clamping, injection, and holding pressure processes.
2.Clamping Force Transmission

During clamping, the tailplate must withstand enormous clamping force (up to thousands of tons) from hydraulic cylinders or toggle mechanisms, preventing mold separation under high pressure.
3.Guidance and Movement

The tailplate typically moves along tie bars (guide columns) to achieve mold opening and closing actions, requiring smooth and deviation-free motion.
4.Cushioning and Protection

Some tailplates incorporate cushioning devices (e.g., hydraulic or spring buffers) to reduce impact during mold opening/closing, protecting molds and machinery.

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.

Company Profile

FAQ