Dongguan Lanbo Electronics Technology Co., Ltd.

Custom CNC Turned Multi-Step Locating Pin with Rounded Tip

Custom CNC Turned Multi-Step Locating Pin with Rounded Tip
Part No :

Custom CNC Turned Multi-Step Locating Pin with Rounded Tip product parameters

We offer full custom CNC turning services for non-standard precision components. We manufacture lathe parts strictly according to your CAD drawings, or provide engineering design support and production arrangements based on your specific requirements.

Item	Details
Product Name	Custom CNC Turned Multi-Step Locating Pin with Rounded Tip
Manufacturing Process	Multi-axis CNC turning, stepped diameter machining, rounded tip forming, chamfering and deburring
Materials Available	SUS304 / SUS316 stainless steel, 1018 / 1045 carbon steel, 6061 /7075 aluminum alloy, C3600 brass, SUJ2 bearing steel
Surface Treatment	Passivation, bright polishing, electropolishing, zinc-nickel plating, black oxide, hard chrome plating, sandblasting
Tolerance Standard	±0.01mm dimensional tolerance, high coaxiality control for multi-step sections and rounded tip
Inspection Standards	Dimensional measurement, concentricity test, surface defect detection, roundness inspection, ISO quality management system
Customization Service	Custom total length, step diameters, number of steps and radius of rounded tip according to 2D/3D drawings or samples; support prototype trial, OEM & ODM mass production

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Detailed description

Custom CNC Turned Multi-Step Locating Pin with Rounded Tip

Our custom CNC turned multi-step locating pin with rounded tip is precision machined rotational positioning hardware with segmented stepped shoulders and hemispherical guiding end. As a professional CNC turning manufacturer based in Dongguan, we produce customized stepped locating pins with ±0.01mm high precision tolerance for global industrial equipment suppliers. We support drawing-based OEM & ODM production, covering adjustable lengths, step diameters and tip radius customization. These multi-step positioning pins are widely adopted for guided insertion, repeatable workpiece locating and depth limiting structures in automation jigs, testing fixtures and precision mechanical assemblies.

Introduction to CNC Lathe Turning Technology

CNC lathe turning is one of the most precise and efficient manufacturing methods for rotational metal components used in industrial automation and precision equipment. Using programmable multi‑axis turning centers, solid metal bars are shaped through continuous cutting, facing, grooving, threading and boring operations with computer‑controlled accuracy.
Compared with manual machining and traditional milling, precision CNC turning delivers consistent dimensional tolerances down to ±0.01mm, smooth surface finishes and excellent repeatability across high‑volume production runs. It is widely used to produce pins, shafts, bushings, connectors and threaded components for mold tooling, electronic devices, medical equipment, automotive systems and industrial automation machinery.
With advanced multi‑axis turning capabilities paired with secondary milling support, CNC lathe technology enables custom geometries including stepped diameters, ball ends, hexagonal profiles and precision slots, which perfectly meet diversified requirements for precision positioning components in industrial equipment.

What Is Multi-Step Locating Pin with Rounded Tip & Its Industrial Role

A multi-step locating pin with rounded tip, also known as stepped positioning dowel pin, is a precision locating component featuring multiple diameter shoulders and a smooth hemispherical end. The rounded tip provides gradual guiding to avoid collision and scratching during insertion into mating holes. Tiered stepped shoulders act as stop surfaces to precisely control assembly depth.
Within automated production lines, inspection fixtures and mold assemblies, locating pins undertake critical repeat positioning tasks. Stable concentricity and tight dimensional tolerance are vital to maintain consistent workpiece alignment. Deviations in step dimension or tip roundness will cause assembly jamming and positioning drift, disrupting continuous production. Therefore, high-precision custom CNC turned multi-step locating pins are essential basic hardware for stable fixture operation.

Custom Multi-Step Locating Pin with Rounded Tip – Precision CNC Turned Positioning Pin

We provide one-stop custom CNC turning solutions for multi-step locating pins with rounded tip, serving automation equipment factories, precision testing enterprises and mold manufacturers worldwide.
Our production range covers all types of stepped locating hardware: single shoulder positioning pins, multi-stage stepped guide pins, rounded head alignment pins, custom long locating pins and non-standard fixture locating mandrels.
All products are manufactured via precision CNC lathe turning combined with rounded tip forming and full deburring. We complete turning, profiling, chamfering and surface finishing strictly in accordance with your 2D/3D engineering drawings. Apart from individual finished locating pins, we also offer kitting service, bundling matching hardware together to simplify your incoming material management and assembly procedures.

Key Advantages of Our CNC Turned Multi-Step Locating Pins

Ultra-precise dimensional & concentricity consistency

All locating pins are processed on multi-axis CNC turning equipment with in-process size monitoring. Strictly controlled step diameters and tip roundness guarantee smooth insertion and reliable repeat positioning accuracy for every single part.

Flexible secondary machining & kitting service

Beyond standard turning and tip forming processing, we support customized chamfering, length modification and groove machining. We can also match auxiliary accessories according to your demands, reducing your secondary processing workload and shortening your whole equipment production cycle.

Excellent durability for continuous industrial operation

We adopt premium SUS304/SUS316 stainless steel, carbon steel, bearing steel and aluminum as raw materials. Optional passivation, electroplating and polishing treatments bring outstanding rust-proof, wear-resistant and anti-corrosion performance, adapting to long-running indoor and workshop working environments.

Fully customizable structural design

We freely adjust shaft diameter, total length, number of steps, shoulder dimensions and rounded tip radius based on your assembly requirements. New non-standard structural designs are fully supported for upgrading your new-generation equipment.

Stable mass delivery capacity

From prototype sample trial production to large-batch bulk orders, we maintain unified quality standards for locating pins all the time, capable of continuous mass supply to support long-term production plans for global industrial brands.

OEM Custom Service Scope

We provide comprehensive tailor-made solutions for custom multi-step locating pins with rounded tip and all types of precision CNC turned components. For material selection, we work with SUS304 and SUS316 stainless steel, 1018 and 1045 carbon steel, 6061 and 7075 aluminum alloy, as well as C36000 brass, all available in a wide range of bar diameters to match your design specifications.
On component customization, our manufacturing scope covers knurled locating pins, dowel pins, shoulder pins, alignment pins, stepped shafts, and virtually any custom precision turned parts based on your unique requirements. For surface finishing, customers can choose from passivation, electropolishing, zinc and nickel plating, black oxide, anodizing, sandblasting and mechanical polishing to meet specific corrosion resistance and appearance needs.
In terms of service mode, we supply both individual precision turned parts and kitted pre-assembled locating components according to your production workflow. For custom tooling and fixtures, we develop exclusive turning setups based on your engineering drawings or physical samples, with full support for small-batch prototype testing before full production commitment.

Typical Application Scenarios

Our custom CNC turned multi-step locating pins with rounded tip are widely applied in industrial automation assembly jigs, precision testing fixtures, injection molds, robotic positioning mechanisms, new energy equipment and laboratory precision instruments.

Frequently Asked Questions

FAQ 1

Q: Can you produce custom CNC turned parts according to my drawings or samples?
A: Yes, we mainly focus on OEM & ODM customized precision turning services. We accept 2D files like PDF/DWG and 3D files such as STEP, IGES. You can also send physical samples for us to reverse-engineer and optimize the structure. Our engineering team will review your design and offer professional suggestions on cost saving and manufacturability (DFM) for free.

FAQ 2

Q: What kinds of metal materials can you use for CNC turning processing?
A: We support a full range of common precision machining metals, including SUS304/SUS316 stainless steel, 1018/1045 carbon steel, 6061/7075 aluminum alloy, C36000 brass, copper and titanium. We can select suitable raw materials based on your product usage, working environment, strength requirements and budget.

FAQ 3

Q: Can I get trial samples before mass production? How long is the sample lead time?
A: Trial samples are available for all customized turning orders. The sample production cycle is 3–7 working days after drawing confirmation. After you test and confirm the sample quality and dimensions, we will arrange mass production. Small batch trial orders are also acceptable if you do not need large volume at first.

FAQ 4

Q: What surface finishing options do you provide for CNC turned metal parts?
A: We offer multiple surface treatments to meet anti-rust, anti-corrosion, wear resistance and appearance demands: passivation, electropolishing, zinc plating, nickel plating, black oxide, powder coating, anodizing for aluminum, sandblasting and polishing. If your products are exported to Europe, we can provide surface treatment that complies with RoHS and REACH standards.

FAQ 5

Q: How do you control the dimensional tolerance of precision CNC turned parts?
A: Our standard tolerance for general turned parts is ±0.01mm, and ultra-precision components can achieve ±0.005mm with grinding processes. We carry out strict three-step quality inspection: IQC for raw material incoming check, IPQC for in-process production monitoring, and FQC full dimension testing before shipment. We provide inspection reports and accept third-party quality inspection as requested.

About our company

Dongguan Lanbo Electronic Technology Co., Ltd. (Brand: LAMBOOR) was established in 2010 with 15 years of experience in precision hardware manufacturing. We own a 3,000 sq.m standardized factory and employ over 100 professional technicians, acting as an integrated one-stop manufacturer specializing in custom precision hardware structural components, covering mold development, stamping, sheet metal, CNC turning, welding and dust-free assembly.

We are fully equipped with Jinfeng/Aomate stamping machines, laser cutting machines, CNC bending machines, together with complete QC testing equipment including 2D projectors, salt spray testers and tensile testers. Certified to ISO9001:2015, we hold multiple utility model patents for hardware molds.

Our products are widely applied in consumer electronics, optical communication, medical devices, automotive and new energy electrical industries, with more than 400 customized projects completed. We maintain long-term partnerships with renowned enterprises including KYOCERA, Foxconn and RICOH.

63% of our annual RMB 30 million revenue comes from overseas exports. Our self-developed progressive mold technology cuts processing costs by 80%. We support rapid prototyping and mass production, delivering stable, cost-effective customized hardware solutions for global clients.