Introduction

ST52 Honing Tube for Hydraulic Cylinder is a high-strength steel tube used for precision machining of the inner cylinder of hydraulic cylinders. It can be ordered in bulk or customized.

Parameter

Category	Specification
Standard	DIN2391, EN10305, ASTM A519, GB/T 3639-200
Material	Q355B, Q355D, C20, ST52, E355, SAE1026, CK45, 4130, 4140, STKM 13C
Heat Treatment	BK+S
Outer Diameter (mm)	40–480
I.D Tolerance	H8–H9
Length	Fixed Length, Random Length (3–9m), or as per customer request
Straightness	0.5–1/1000
ID Roughness	Ra 0.1–0.8 μm (max)
Payment Term	FOB, CFR, CIF, EXW, FCA, etc.
MOQ	3 tons
Technology	Honed & SRB (Skived and Roller Burnished)
Application	Hydraulic cylinder, swivel crane, injection machine, etc.
Conservation	Anti-rust oil on inner and outer surface, plastic caps on both ends
Package	Bundle with steel strip and knitting strip, or wooden case

Features of ST52 Honing Tube for Hydraulic Cylinder

Durable

The ST52 Honing Tube for Hydraulic Cylinder is made of high-strength ST52 carbon steel and undergoes precision rolling, extending the service life of the hydraulic cylinder to 5-7 years.

High Precision

Inner diameter tolerance ±0.02mm, straightness ≤0.1mm/m, ensuring smooth operation of the hydraulic piston.

Wide Compatibility

Standard wall thickness 4-25mm, compatible with over 90% of hydraulic cylinder brands on the market.

Customization

Customizable Aspect	Description
Dimensions	Outer diameter, inner diameter, length, and wall thickness can be adjusted according to customer drawings or samples.
Surface Treatment	Inner wall honing precision, surface roughness, and hardened layer thickness can be customized.
Material Selection	Supports different steel grades (ST52, Q355B, CK45, etc.) and alloy adjustments.
Interfaces and Standards	Interface dimensions and designs can be customized according to DIN, ISO, or customer-specified standards.

product-750-489

FAQ

Q: What payment methods do you accept?

A: We usually accept a 30% T/T deposit + 70% payment against a copy of the bill of lading, or a 100% irrevocable letter of credit at sight. Other methods are negotiable.

Q: What are your packaging methods?

A: We use standard export sea freight packaging (waterproof paper + corner protectors + wooden pallets), and can also customize according to customer requirements.

Q: Do you support bulk packaging?

A: Yes, we support bulk packaging for products of any size.

Q: From which port do you ship?

A: Goods are usually shipped from Shanghai Port or Ningbo Port.

Q: How long is the delivery time?

A: The normal delivery time is about two weeks, depending on the order quantity.

Q: Which hydraulic systems is the ST52 Honing Tube suitable for?

A: High-pressure systems in hydraulic cylinders, rotary cranes, injection molding machines, and other industrial hydraulic equipment.

Q: How to install?

A: Align the tube end with the inner bore of the hydraulic cylinder and easily insert it using the special installation clamp, ensuring a tight seal at the port.

Q: Cleaning requirements?

A: Wipe both the inner and outer surfaces with an anti-static cloth or a non-corrosive cleaner to prevent sand and moisture from entering the tube.

Q: How to transport and pack?

A: Packed with steel straps or wooden crates, rust-proof inside and out, with plastic end caps to prevent impact damage.

Certificate

The company has obtained authoritative certifications for multiple international management systems, including ISO 9001 and compliance with the PED 97/23/EC Pressure Equipment Directive.

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ST52 Honing Tube for Hydraulic Cylinder

Introduction

Parameter

Features of ST52 Honing Tube for Hydraulic Cylinder

Customization

FAQ

Certificate

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