EAST AI Hydraulic Manufacturer
Since 2006
 |
Hollow Chrome Plated Rod
EAST AI
CK45
max 15m
f7/f8/g6,etc
Ra≤0.2μ
Product Description
Material: CK45 Medium Carbon Steel
CK45 (approx. 0.42 – 0.50% carbon) offers excellent tensile strength, good machinability and weldability, making it highly suitable for hydraulic and structural applications.
Hollow Structure
The hollow design reduces weight while maintaining strength and rigidity, enabling lighter assemblies and improved dynamics in mobile or automated equipment.
Chrome Plated Outer Surface
The rod’s outer layer is chrome-plated, which significantly improves abrasion resistance, corrosion protection (especially in humid or saline environments), and surface hardness, extending service life under tough working conditions.
“ID Not Honed” Specification
Unlike ID‐honed rods with finely machined inner bores, this rod is supplied without internal honing. This enables cost savings when inner precision is not critical, or allows the end-user to perform custom machining, drilling or reaming as needed.
Customizable Lengths and Dimensions
Standard lengths are available, and cut‐to‐length or end-machining services can be supplied to match specific hydraulic cylinder or machine design requirements.
Cost-Effective Solution
By foregoing the internal honing process, this rod provides an economical alternative while retaining the essential features of high-strength steel and chrome plating suited for heavy-duty use.
| Specification | Details |
|---|---|
| Material | CK45 medium carbon steel |
| Outer Surface Finish | Chrome plating |
| Internal Bore (ID) | Supplied UN-Honed (ID Not Honed) |
| Structure | Hollow cylindrical rod |
| Standard Lengths | Customizable (e.g., up to 13 m or as per customer need) |
| Tolerance (OD / Length / Straightness) | To be specified per customer order |
| Application | Hydraulic cylinders, lifting equipment, mobile machinery, automation |
| Custom Sizes Available | Yes |
| Weight Reduction | Hollow design enables lighter assembly |
| Additional Treatments | Anti-rust oil for storage, optional machining services |
High Material Strength & Reliability
CK45 provides robust mechanical properties suitable for high‐stress hydraulic applications, ensuring reliable performance under load.
Optimized Design for Weight & Efficiency
The hollow design helps reduce the overall system weight, which is especially beneficial in mobile equipment and automated systems where lower inertia and improved dynamic response matter.
Enhanced Surface Durability
The chrome-plated outer surface offers superior wear resistance and long‐term corrosion protection, reducing maintenance downtime and cost.
Flexibility & Cost Savings
Because the rod is supplied without inner honing, you gain flexibility to machine or bore the inner diameter as needed, or accept less stringent internal tolerances—resulting in cost savings compared to fully honed products.
Customizable to Your Needs
Whether you need special lengths, end-machined features, or specific tolerances, this rod can be tailored to your specifications.
Ideal for Diverse Applications
From construction equipment to industrial automation, this rod adapts to a wide range of system types—where precision internal bore is not critical but outer durability and strength are.
The CK45 ID Not Honed Hollow Chrome Plated Rod is engineered for multiple sectors:
Hydraulic Systems & Cylinders
Ideal for use in hydraulic cylinders in excavators, forklifts, dump trucks, agricultural machines and other mobile equipment where high strength, wear resistance and durability matter most.
Construction & Earthmoving Machinery
Suitable for structural elements or hydraulic components in cranes, loaders, bulldozers, telehandlers and other heavy machines working in harsh environments.
Automated & Industrial Machinery
Used in automation systems, presses, injection moulding machines, and lifting units where a durable rod with chrome plating is required and internal bore precision may not be the primary requirement.
Agricultural & Mining Equipment
Offers resistance to wear and corrosion in contexts such as tractors, harvesters, drilling rigs, and mining loaders, where equipment is subject to heavy usage and challenging conditions.
General Mechanical & Structural Uses
Its hollow design and chrome surface make it suitable for applications beyond hydraulics, for example in telescopic booms, structural support rods, pistons, or other mechanical assemblies where outer surface durability is beneficial.
To ensure consistent high quality, the manufacturing process for the CK45 rod includes:
Raw Material Selection — High‐quality CK45 seamless steel tubes or hollow rods are sourced from trusted mills with documented mechanical properties and traceability.
Pre-machining or Cutting to Length — Standard or custom lengths are cut and face machined to meet customer specifications.
Heat Treatment / Normalizing — Stress relieving and normalizing treatments are conducted to stabilize the material’s structure, improving straightness and reducing residual stresses.
Hollowing / Drilling (if required) — For hollow rod configurations, internal bore is drilled or formed; in ID Not Honed products this is done to rough specification without final honing.
Chrome Plating — The outer surface undergoes chrome plating to achieve the required corrosion and wear resistance. Surface hardness, thickness and plating uniformity are controlled through plating process parameters.
Straightness & Roundness Inspection — The rod is checked for straightness, roundness, and concentricity to ensure suitability in hydraulic cylinder assemblies or mechanical systems.
Surface Protection & Packaging — Anti-rust oil or protective coatings are applied. Rods are carefully packaged, typically in wooden crates or wrapped bundles to protect against transit corrosion.
Final Inspection & Documentation — Each rod is inspected, and documentation such as Mill Test Certificates (MTC), dimensional reports and plating thickness certificates is provided to customers.
We maintain rigorous quality assurance standards to ensure every rod meets or exceeds industry expectations:
straightness, outer diameter (OD), wall thickness (for hollow rods), length tolerance.
outer chrome layer thickness, uniformity, adhesion testing.
tensile strength, yield strength, elongation, verified through test reports.
Corrosion and salt spray tests for the plating (upon customer request).
Mill Test Certificates, material traceability, inspection records.
e.g. ISO 9001 quality management, third‐party inspection reports.
If you are interested in ordering the CK45 ID Not Honed Hollow Chrome Plated Rod, please consider the following:
Specify rod diameter (outer), wall thickness (if hollow), length, and any end-machining or threading required.
Indicate whether inner bore machining will be done by you (since this product is supplied without ID honing).
Confirm chrome plating thickness requirement and any additional surface treatment (e.g. passivation, anti-rust coating).
Provide tolerance requirements for straightness, concentricity and any other mechanical parameters.
We offer flexible packaging, custom lengths, and fast delivery globally.
Contact our sales team with your detailed specifications and request a quote. We can support large stock availability, large diameters, and special custom orders.
In summary, the CK45 ID Not Honed Hollow Chrome Plated Rod offers a robust, cost-effective solution for hydraulic, mobile, and industrial machinery applications. With its medium carbon steel CK45 foundation, hollow design for weight savings, chrome-plated surface for durability, and the “ID Not Honed” specification for flexibility or cost savings, this rod meets the needs of manufacturers and engineers seeking high performance without over-engineering. Choose it when outer surface integrity, strength and value matter — and when internal bore precision may be handled downstream or is not the primary requirement.
For quotations, technical drawings or custom orders, please contact us today and let us help specify the right rod configuration for your application.
