Dongguan Lanbo Electronics Technology Co., Ltd.

Custom CNC Turned Internal Thread Aluminum Cylindrical Sleeve

Custom CNC Turned Internal Thread Aluminum Cylindrical Sleeve
Part No :

Custom CNC Turned Internal Thread Aluminum Cylindrical Sleeve 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 Internal Thread Aluminum Cylindrical Sleeve
Manufacturing Process	CNC turning, internal thread tapping, outer annular groove turning, precision deburring, sandblasting finishing
Materials Available	6061‑T6 aluminum alloy (standard), SUS304 / SUS316 stainless steel, C36000 brass, carbon steel
Surface Treatment	Sandblasting, natural anodizing, hard anodizing, black anodizing, nickel plating, zinc plating
Tolerance Standard	Dimensional tolerance ±0.01mm; precise internal thread tolerance; accurate position and depth of outer annular grooves; strict coaxiality control for inner bore and outer circle
Inspection Standards	Micrometer & caliper dimension testing, thread gauge inspection, groove dimension verification, coaxiality check, surface visual inspection under ISO quality management system
Customization Service	Custom inner diameter, outer diameter, overall length, internal thread specification and outer groove quantity & dimension according to drawings or samples; support prototype trial production, OEM & ODM mass‑volume orders

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Detailed description

Custom CNC Turned Internal Thread Aluminum Cylindrical Sleeve

Our Custom CNC Turned Internal Thread Aluminum Cylindrical Sleeve is a precision hollow connecting component with internal thread and multiple outer annular grooves. As a professional CNC turning manufacturer based in Dongguan, we produce customized aluminum cylindrical sleeves with ±0.01mm ultra‑precise tolerance strictly following customers’ 2D & 3D engineering drawings. We support full OEM & ODM customization for sleeve size, thread specification and outer groove parameters. These aluminum threaded sleeves are widely adopted for threaded connection, positioning assembly and locking fit in automation fixtures, optical equipment and precision mechanical devices.

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, metal bars are processed through continuous cutting, facing, grooving, threading and boring with computer‑controlled accuracy.
Compared with manual machining and conventional milling, precision CNC turning achieves stable dimensional tolerance down to ±0.01mm, smooth surface quality and outstanding consistency during mass production. It is widely applied to fabricate pins, shafts, bushings, connectors and threaded parts for mold, electronics, medical, automotive and automation machinery.
Equipped with secondary milling and cutting capacity, CNC turning supports complex customized profiles including stepped cylinders, grooved structures and multi‑sided profiles, satisfying diversified precision positioning component demands for industrial equipment.

Product Definition & Industrial Value

Internal thread aluminum cylindrical sleeve is a hollow cylindrical connecting part with internal threaded bore and multiple outer annular grooves. Internal thread realizes reliable threaded mating connection, outer annular grooves improve assembly clamping and anti‑slip performance. It solves industry pain points including unstable thread fit, poor positioning accuracy and slipping during assembly, improving connection stability and assembly efficiency for optical instruments and precision mechanical equipment.

Our Product Service

We provide one‑stop custom CNC turning service for internal thread aluminum cylindrical sleeves for global optical and mechanical equipment suppliers. Our product scope covers custom threaded sleeves, connecting bushings, hollow coupling parts and other non‑standard hollow machined hardware. We complete full turning, internal thread tapping, outer groove processing and surface finishing strictly based on customer engineering drawings. Value‑added services include diversified surface treatment, full‑dimension inspection, prototype sampling and large‑batch OEM production.

5 Core Advantages

High‑precision internal thread matching structure

The internal thread is precisely processed by CNC turning, with accurate tooth profile and pitch, realizing smooth and stable threaded mating. Good thread consistency avoids jamming or loose connection, ensuring reliable assembly performance for long‑term working conditions.

Multi‑outer annular groove anti‑slip design

Multiple uniform annular grooves on outer surface enhance friction for clamping installation. Groove dimension, depth and quantity can be adjusted, convenient for press‑fit, locking and positioning assembly, effectively preventing component rotation and displacement.

Light‑weight aluminum alloy base material

Standard 6061‑T6 aluminum alloy features high strength‑to‑weight ratio, light weight and good corrosion resistance. Compared with steel sleeves, it reduces overall equipment load, suitable for optical equipment and lightweight mechanical assembly scenarios.

Strict coaxiality machining control

Inner threaded bore and outer cylinder are processed in one‑time clamping, guaranteeing excellent coaxiality. Effectively eliminates deflection after assembly, ensures positioning accuracy for high‑precision equipment application.

Drawing‑oriented full‑range customization

All critical parameters including inner‑outer diameter, total length, thread standard and outer groove specifications can be customized per 2D/3D drawings or physical samples. We support small‑batch prototype verification and large‑volume mass production orders.

OEM Custom Service Range

We provide comprehensive customized solutions for custom internal thread aluminum cylindrical sleeves and all kinds of precision CNC turned components. Available materials include 6061‑T6 aluminum alloy, SUS304/SUS316 stainless steel, C36000 brass and carbon steel, with sufficient bar stock to match different strength, weight and corrosion resistance requirements.
Our custom product range includes connecting sleeves, locating pins, bushings, stepped shafts, threaded fittings and other rotational precision machined parts. Selectable surface treatments: sandblasting, natural anodizing, hard anodizing, black anodizing, nickel plating and zinc plating.
We can supply single parts or matched hardware kits according to assembly needs. Custom machining will be developed based on your drawings or samples. Small batch prototype testing is available before formal mass production.

Typical Application Scenarios

Our Custom CNC Turned Internal Thread Aluminum Cylindrical Sleeve is widely used for optical equipment assembly, precision machinery connection, automation fixture positioning, instrument component fitting, testing equipment locking and industrial lightweight mechanical assembly.

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.