High Precision Chromeplated Linear Shaft ZHONGNUO

High Precision Chromeplated Linear Shaft ZHONGNUO

Zhongnuo Precision Linear Shafts are manufactured from premium carbon steel, bearing steel and stainless‑steel substrates via quenching, precision grinding and hard‑chrome electroplating processes. Both standard off‑the‑shelf products and non‑standard custom solutions per drawings are available. Widely applied in industrial automation, metal processing, robotics, new‑energy, food & pharmaceutical industries, they serve B‑end purchasers at home and overseas.

Product Details

High Precision Chromeplated Linear Shaft ZHONGNUO

Unique Selling Points

1.Stable Quenching & Wear‑resistant Performance

Selected high‑quality carbon steel and bearing steel. Adopt standard high‑frequency quenching with controllable hardened layer. Hydrogen removal treatment after chrome plating eliminates hydrogen‑brittleness risk. The shaft features long wear‑resistant service life and maintains equipment precision for long‑term operation, meeting assembly standards for high‑end equipment.

2. Excellent Anti‑rust Performance for Ocean Shipment

Strictly control hard‑chrome plating thickness for firm adhesion without peeling. Equipped with export‑grade anti‑rust oil, suitable for ocean shipping conditions. Effectively prevent rust and white spots to guarantee product quality upon arrival for overseas customers.

3. Superior Straightness Accuracy & Batch Consistency

Multiple precision straightening & fine grinding after heat treatment, strict control of geometric tolerances, surface roughness Ra≤0.2μm. Batch‑by‑batch sampling inspection ensures stable consistency. Smooth assembly and operation, supporting 24‑hour continuous production.

4. One‑stop Custom Machining & Flexible Delivery

Available for standard stock and non‑standard one‑stop processing. Custom steps, threads, keyways, hollow shafts with well‑controlled processing deformation. Both small‑batch samples and mass orders are accepted. Delivery schedule updated timely to secure customer project milestones.

5. Complete Foreign‑trade Support & Technical Service

Full set of inspection reports available for factory audit and customs clearance. Professional selection suggestions based on real‑world machinery operating experience. Support overseas remote technical support and fast spare‑parts supply to secure stable customer production.

Applicatioon

Automation & Hydraulic Equipment Industry: Guide shafts for automated machinery, hydraulic cylinders, injection‑molding machines and mold guide pins.

Food & Pharmaceutical Machinery: Precision transmission shafts for food processing and pharmaceutical anti‑corrosion equipment.

Robotics & Conveying System Manufacturers: Transmission and guiding shafts for robotic arms and material conveying equipment.

General‑purpose Mechanical Workshops:Supply standard off‑the‑shelf shafts and custom‑machined non‑standard shafts for diverse mechanical supporting projects.

Customizable Specifications

Specification

Item	Specifications
Product Name	Precision Linear Shaft / Linear Motion Shaft
Material	High-quality carbon steel, bearing steel, stainless steel
Diameter Range	Φ30mm – Φ650mm
Length Range	Up to 6000mm, custom cut available
Surface Hardness	HRC 58–62 (after high-frequency quenching)
Surface Treatment	Hard chrome plating, optional mirror polishing
Straightness	≤0.1mm/m
Roundness / Cylindricity	≤0.003mm
Tolerance Grade	g6 / h6
Custom Machining	Keyway, threaded holes, tapers, flanges, slots, special ends per drawing
Compatible Industries	Industrial automation, robotics, metal processing, new energy, food & pharmaceutical equipment
Packaging	Anti-rust oil + wooden case for sea shipment

Packing & Delivery

Packing Method: Standard protection adopts overall wrapping with industrial stretch film for moisture‑proof, rust‑proof, friction and collision resistance. Custom solid‑wood crates are available upon customer request for enhanced reinforcement, suitable for long‑distance and ocean shipping to fully secure equipment transit. Large‑size machines are loaded in separate containers. Specially‑structured units can be fixed in dedicated structural containers to prevent equipment displacement, deformation and loose components caused by transportation jolting.
Weight Note: The gross and net weight varies with configurations, roller diameters and customized width specifications. All models feature heavy‑duty steel frames for solid weight and robust construction. Exact net/gross weight will be calculated based on the final selected specification.
Lead Time: Production lead‑time for standard machines is 60‑120 days. For customized solutions including new mould development, one‑piece cast‑steel base, special roller sets or complete production lines, lead‑time will extend to over 90 days. The exact delivery time shall be subject to the final contract.
Loading Port: Shanghai Port and Ningbo Port are the default major foreign‑trade ports with sufficient vessel schedules and mature logistics, well‑suited for global sea freight, customs inspection and cross‑border delivery.

Warranty & After‑sales Service

Warranty Coverage: All equipment comes with 12‑month standard warranty. Free repair and replacement of core components are provided for non‑human‑induced damage within the warranty period, lowering customers’ procurement and maintenance costs and avoiding production downtime risks.
7×24‑Hour Remote Technical Support: Round‑the‑clock remote commissioning, troubleshooting, system upgrade and parameter optimization services are available. Our technical team responds promptly to equipment errors, abnormal process adjustments and operational difficulties to minimize disruption to customer production.
Overseas On‑site Technical Guidance: Overseas engineers are available worldwide for on‑site installation, commissioning, calibration, operator training and process implementation guidance. One‑on‑one technical support is offered for overseas projects to ensure fast commissioning and stable operation of equipment.
Fast Supply of Original Spare Parts: Core spare parts are independently developed and manufactured in‑house with sufficient stock and precise model matching for fast cross‑border shipment. It avoids poor compatibility and long lead‑time of generic spare parts, ensuring long‑term stable equipment performance.
Lifelong Technical Follow‑up Service: Cost‑based repair and technical support are offered after warranty expiration. Regular customer follow‑ups are conducted for active precision calibration, process optimization and potential fault inspection to continuously reduce customers’ long‑term production and maintenance risks.

1.What materials are available for your linear shafts?

We supply linear shafts made of high-quality carbon steel, bearing steel, SUS304 and SUS420 stainless steel. Different base materials can be selected according to your working environment, load and corrosion resistance requirements.

2.What diameter and length ranges can you provide?

Our linear shaft diameter covers Φ6mm to Φ120mm. The maximum length can reach 6000mm, and custom cutting is supported. The actual finished size can be processed as per your drawings.

3.What surface treatments and hardness options do you offer?

We adopt high-frequency quenching treatment with surface hardness HRC 58–62. Hard chrome plating is standard, and mirror polishing is optional to improve wear resistance and anti-rust performance for overseas transportation.

4.Can you make custom machining on the shaft ends?

Yes. We can process keyways, threaded holes, tapers, flanges, slots and other special end features. OEM & ODM custom service is available based on your technical drawings.

5.What tolerance and straightness can your linear shafts achieve?

Our linear shafts are finished by precision grinding. The tolerance grade can reach g6 / h6, straightness ≤0.1mm/m, roundness & cylindricity ≤0.003mm, stable for high-precision automation equipment.

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