Parallel Pins for Precision Positioning

This Parallel Pins for Precision Positioning is manufactured by Wanluo Factory. Also known as straight column positioning pins, it is a specialized high-precision positioning component used in industrial precision assembly systems. Its core function differs from the tightening and locking functions of ordinary bolts and rivets. It mainly serves for precise alignment of equipment components, anti-deviation fixation, and coaxial calibration.

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Product Description

Special optimizations have been made for the problems such as alignment deviations, component shifts, and coaxiality inaccuracies that are prone to occur during mechanical assembly, mold bonding, and automation equipment assembly. The Wanluo factory has developed Parallel Pins for Precision Positioning, which, through micrometer-level precise tolerance control, provides zero-displacement reference positioning for various precision fixtures, molds, vehicle components, and automation equipment.

Material Advantage

The product is manufactured using an integrated solid cylindrical one-piece molding process, combined with professional quenching and tempering heat treatment technology. It achieves both extremely high structural hardness and shear resistance, capable of withstanding long-term vibrations and lateral external force pulling of the equipment, and maintaining stable assembly accuracy. It is the core basic component for high-end precision mechanical assembly.

Product features

1. Pure positioning exclusive function, precisely calibrating assembly reference

2. Micrometer-level tolerance control, extremely high overall accuracy

3. Overall quenching and tempering treatment, balanced and powerful mechanical properties

4. Strong anti-displacement ability, excellent working condition stability

5. Broad versatility, suitable for all scenarios of precision assembly

Manufacturing Technology

Parallel pins adopt one-piece high-precision centerless grinding and integral heat treatment process. The whole body is a straight cylindrical structure with uniform wall thickness and consistent outer diameter tolerance, realizing tight zero-clearance fitting with pin holes. Both ends are finely chamfered and smoothly polished without burrs, facilitating quick insertion and assembly while avoiding scratching workpiece holes. The product undergoes overall vacuum quenching and low-temperature tempering treatment, with high core toughness and ultra-high surface hardness, effectively preventing bending, deformation and abrasion during long-term reciprocating assembly and mechanical operation. High-precision dimensional calibration ensures perfect interchangeability of standard pins. Made of high-quality carbon steel, alloy steel and stainless steel materials, all products comply with international industrial standards, with stable mechanical performance and long service life, suitable for high-precision industrial matching scenarios.

Product Parameter

Parameter Item	Detailed Specification
Product Name	Parallel Pins, Straight Cylindrical Pins, Dowel Pins, Precision Locating Pins
Executive Standard	DIN6325, ISO2338, GB119, JIS Standard, Custom Non-standard Precision Sizes
Available Material	45# Carbon Steel, 40Cr Alloy Steel, 304/316 Stainless Steel, SKD Steel
Size Range	Diameter 1.5mm-50mm, Length 5mm-300mm, m6/h8/h7 tolerance grades optional
Structure Type	Solid straight cylinder, double-end chamfer, high-straightness precision positioning structure
Processing Technology	Centerless precision grinding, integral quenching & tempering, surface hardening, mirror polishing
Applicable Scenarios	Mold assembly, mechanical positioning, equipment fixing, automotive parts, automation precision assembly
Surface Treatment	Black oxide hardening, anti-rust oil treatment, natural stainless steel polishing
Mechanical Properties	High hardness, ultra-wear resistance, strong shear resistance, zero deformation, high positioning accuracy
Packaging Method	Anti-rust inner box + export carton, moisture-proof and shockproof packaging for precision parts
Supply Service	Spot standard size supply, high-precision non-standard customization, one-stop fastener matching

Parallel Pins For Precision Positioning

Nominal Diameter d			Φ0.6	Φ0.8	Φ1	Φ1.2	Φ1.5	Φ2	Φ2.5	Φ3	Φ4	Φ5
d^①	m6	max	0.608	0.808	1.008	1.208	1.508	2.008	2.508	3.008	4.012	5.012
	m6	min	0.602	0.802	1.002	1.202	1.502	2.002	2.502	3.002	4.004	5.004
	h8	max	0.6	0.8	1	1.2	1.5	2	2.5	3	4	5
	h8	min	0.586	0.786	0.986	1.186	1.486	1.986	2.486	2.986	3.982	4.982
c	≈		0.12	0.16	0.2	0.25	0.3	0.35	0.4	0.5	0.63	0.8
Weight of per 1000 steel products≈kg			-	-	-	-	-	-	-	-	-	-

Nominal Diameter d			Φ6	Φ8	Φ10	Φ12	Φ16	Φ20	Φ25	Φ30	Φ40	Φ50
d^①	m6	max	6.012	8.015	10.015	12.018	16.018	20.021	25.021	30.021	40.025	50.025
	m6	min	6.004	8.006	10.006	12.007	16.007	20.008	25.008	30.008	40.009	50.009
	h8	max	6	8	10	12	16	20	25	30	40	50
	h8	min	5.982	7.978	9.978	11.973	15.973	19.967	24.967	29.967	39.961	49.961
c	≈		1.2	1.6	2	2.5	3	3.5	4	5	6.3	8
Weight of per 1000 steel products≈kg			-	-	-	-	-	-	-	-	-	-

Core Advantages & Industrial Applications

1. Micron-level precision tolerance control with excellent straightness and roundness, achieving ultra-high-precision zero-clearance assembly. Parallel Pins for Precision Positioning effectively eliminates component shaking, position deviation and coaxiality errors, greatly improving mechanical assembly accuracy.

2. Integral heat treatment and surface hardening process endow the pin body with ultra-high hardness and wear resistance. It can withstand long-term frequent disassembly, vibration and lateral shear force without bending, deformation or abrasion, ensuring long-term stable positioning accuracy.

3. Double-end smooth chamfer design enables fast and labor-saving insertion and installation, avoiding hole damage and clamping stagnation during assembly. The smooth surface effectively reduces assembly friction and improves production and processing efficiency.

4. Excellent structural stability and interchangeability. Standard parallel pins are fully compatible with international standard pin holes, supporting universal replacement and batch assembly, reducing equipment maintenance and parts replacement costs.

5. Multiple material and precision grade options, widely used in mold manufacturing, automated machinery, automotive industry, aerospace equipment, electrical precision instruments and high-precision mechanical assembly fields.

Parallel Pins For Precision Positioning

Real Customer Evaluation

Authentic feedback from our global distributors and engineering purchasers

Customer 1 | European Hardware Distributor : Stable product dimensional accuracy, standard thread size, excellent anti-rust surface treatment. The mixed container order is well packaged, delivery on time. Very reliable long-term Chinese hardware supplier.

Customer 2 | Marine Engineering Contractor : The batch products pass our third-party load test perfectly. Both standard fasteners and customized CNC parts fit the site assembly standard perfectly. Responsive after-sales team.

Customer 3 | American Industrial Procurer : Cost-effective factory direct price, flexible OEM logo customization. Perfect for our local industrial and construction wholesale market, will place repeated bulk orders.

Hot Tags: Parallel Pins Wholesale, Precision Parallel Pins Manufacturer, Parallel Positioning Pins Supplier

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