Rapid Locking Pin of High-Precision 3D Welding Table

Product Description

The Rapid Locking Pin is a fast - positioning and locking component specifically designed for high - precision 3D welding workbenches. It is used to achieve second - level positioning and fixation of modular fixtures, workpieces, or auxiliary tools. Its core features include single - hand operation, high repeatability accuracy (±0.01mm), and heavy - duty load - bearing capacity, which significantly improves the adjustment efficiency of welding fixtures.

Core parameters
Applicable hole system
D16/D28 standard holes (with 16/28mm hole diameters)
Locking method
Spring plunger / Lever quick release / Threaded locking (depending on the model)
Repeat positioning accuracy
≤±0.01mm
Material
Alloy steel (surface hardened to HRC50+) or stainless steel
Tensile strength
≥800MPa
Operating force
Typically 5 - 10N (operable with one hand)
Temperature range
-20ºC~200ºC (resistant to high welding temperatures)

Product Parameters

Item	No.	Spec	Weight(kg)
Rapid Locking Pin	LM1660001	φ16x24	0.06
	LM1660002	φ16x36	0.08
Countersunk head quick lock pin	LM1660103	φ16x24	0.04
Countersunk head quick lock pin	LM1660104	φ16x36	0.06

 

Product Description

 

Core functions
(1) Quick positioning and locking
• 1 - second operation: Achieve "press/rotate to lock" through a spring mechanism or lever device, saving 90% of the time compared to traditional bolts.
• Tactile feedback: There is an obvious "click" sound to indicate proper locking.
(2) High - precision repeat positioning
• Precision - ground pin body: The clearance with the D16/D28 hole system is ≤0.005mm, eliminating wobbling.
• Self - centering design: Automatically compensates for minor alignment errors.
(3) Heavy - duty load capacity
• Lateral shear resistance: ≥5kN (equivalent to a 500kgf lateral load).
• Vibration resistance: A special locking structure prevents loosening caused by welding vibrations.
 

Operation process
1. Insertion: Align the pin with the D16/D28 hole of the welding station.
2. Locking:
Spring type: Press directly until a "click" sound is heard.
Lever type: Turn the handle 90°.
3. Release:
Spring type: Pull the release ring.
Lever type: Turn the handle in the opposite direction.


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Product Application

Typical application

• Rapid fixture changeover: Changing different welding fixtures during mass production.
• Multi - workpiece positioning: Quickly switching multiple parts to be welded on the same tabletop.
• Expansion module installation: Plug - and - play of components such as laser locators and welding torch holders.
• Robot welding cell: Coordinating with the automation system to achieve programmed positioning.

Maintenance and Selection Suggestions
• Regular Cleaning: Use an air gun to remove welding slag from the pin holes (recommended once every 8 hours).
• Lubrication and Maintenance: Apply high - temperature grease (such as molybdenum disulfide) every 3 months.
• Selection Key Points:
For frequent model changes, choose the spring - plunger type.
For heavy - duty loads, choose the lever - quick - release type.
For ultra - high precision, choose the model with threaded locking + conical surface positioning.

Company Profile

√ Wuxi Lemar Machinery Equipments Co., Ltd. is a high-tech enterprise specializing in automated welding equipment and H-beam equipment. Our company has developed a series of professional equipment such as CNC cutting equipment, Beveling equipment, welding equipment, etc.

√ On the basis of continuously absorbing advanced technologies and processes domestic and abroad,our products are widely used in pressure vessels, petrochemicals, power stations, heavy machinery, ships, steel structure buildings and other industries.Most of the products have reached advanced international levels.

√ Lemar Machinery has won the praise of users with the corporate spirit of "motivational and enterprising, honest and trustworthy", and is wi ling to work hand in hand with friends from all walks of life to realize its vision.

 

 

Certifications

 

 

Packaging & Shipping

Request Custom Quote

 

FAQ

Q: What's the lead time for custom configurations?
A: Standard units ship in 3-5 business days. Custom builds require 2-3 weeks for production.

Q: Do you provide on-site installation?
A: Yes, our certified engineers offer global installation and calibration services.

Q: What warranty coverage is included?
A: 1-year limited warranty on mechanical components.

Shipping & Support
✓ FOB/CIF terms available
✓ DDU/DDP shipping to 50+ countries
✓ Trade assurance through PICC/Country bank


This quick-locking pin, with military-grade precision and user-friendly design, solves the pain point of the trade-off between positioning efficiency and accuracy in 3D welding systems. It is especially suitable for scenarios that require frequent model changes or automated integration. Its performance far exceeds that of traditional fixing methods, making it a key component for the upgrade of intelligent manufacturing.