Qingzhou Longyue Hydraulic Machinery Co.,Ltd

Telephone:

+86-536-3295150

+86 13280195875 13406669513

Finished Chrome Hydraulic Cylinder Rod

Finished Chrome Hydraulic Cylinder Rod

Professional manufacturer of Hard chrome rod for hydraulic, founded in 2004, major in honed tube, hydraulic tube, chrome rod, chrome bar, chrome shaft, at present we are biggest manufacturer and wholesaler in north of China. Finished chrome hydraulic cylinder rod Process: ingot → heat → forging...

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  • Product Details

Professional manufacturer of Hard chrome rod for hydraulic, founded in 2004, major in honed tube, hydraulic tube, chrome rod, chrome bar, chrome shaft, at present we are biggest manufacturer and wholesaler in north of China. 


Finished chrome hydraulic cylinder rod

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Process: ingot → heat → forging → heat treatment (normalizing + tempering) → inspection → rough machining → UT → 2nd heat treatment → finishing machining → inspection → Peeling – Straightening – Heat treatment – Grinding 3 times – Straightening – Grinding 2 times – Polishing Ra0.2 – Chrome plating – Polishing Ra0.2 – Finished products

Heat treatment: Normalized / Annealed / Quenched / tempered

Delivery condition: Hot forged +Rough machined (black surface after Q/T)+ Turned (optional)

Inspection Equipments: Metallurgical analysis, Tensile strength tester, Hardness tester, Altimeter, Scale Micrometer, pressure tester, etc.

Material: carbon steel or alloy steel


We are sure that you will find a great satisfaction with our qualified products on this business field.


PRODUCT DETAILS

Production Name:

oilfield equipment, petroleum fitting, oil and gas parts

Certification:

BV, TUV, SGS, ISO9000

Technology:

forging, open die forging, free forging, ring forging, stamping,
hot, rolling

Equipment:

CNC Machining

Material:

Carbon steel, Alloy steel, stainless steel

Surface treatment:

Heat Treatment, oxide coating, plating, finishing,
painting, galvanized, chromed

Model Number:

Custom According to Drawings

Application:

oil and gas, oilfield, Engineering Construction Machinery

Chrome thickness:

20~30micron

Length:

1000mm~10000mm

Weight:

10kg-3000kg

Tolerance:

0.01mm

Roughness:

Ra 0.2micron (max)

Torque Capacity:

3600N

Yield Strength:

≥320 Mpa

Tensile Strength:

≥580 Mpa

Elongation:

≥ 15%

Packing:

Wood box for free fumigate or according to customers'
requirements

Shipment

By Sea/ By Train


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Advantages  

We are one of biggest manufacturer in China. Raw material is mainly from famous refinery steel mills, such as BAO STEEL, Tianjin, and Chengdu etc., which are the best and largest raw material manufacturers in China. we have been passed ISO9001:2000 international quality system certification. 


Precision equipment

We own 35 sets honing machines producing tube ID from 38.1mm to 1000mm, at max length of 18m. We also have skiving & burnishing machine (made in Italy and Korea), which can make tube ID max 530mm.

We own 18 sets of equipment for piston rod in completely production, producing OD from 12mm to 500mm, at max length of 16m. Plate according to customers’ different requirements such as Chrome, Nickel, and Ceramic. Thickness is from 10μm to 100μm.


High Precision

Honed tube (Roughness as 0.2μm and straightness ≤ 1/1000mm). 

Piston rod (Chrome thickness is 10-50 micron. Roughness as 0.2μm and straightness ≤ 0.15/1000).

Product details are completely meet international Standard, chrome rod and honed tube must be cut flatly. 


Long Warranty Period

Warranty period for our honed tubes and chrome bars is 2 years. For some special or important requirement, the period is 5 years. All the orders, records of production and inspection would be kept for 5 years.


Fast Delivery 

The average delivery time is 5-30 days after order confirmed. 

Output for honed tubes is about 300tons per month and 200tons for chrome bars per month.


Safer Package

our packages are safer than others’ supplier in China. Packing for rod normally we choose is cardboard that film attached inside, which does not only prevent rods from scratch but also from oil rusting. Tubes are sealed by caps at both end and painted oil on inside and outside surface. 

For full container, extra package like parcel at outside will be using.


FAQ 

Q1: Are you a manufacture or a trade company?

A: Manufacture, we are one of leading manufacturer of honed tube, chrome rod in China with 14 years' experience and technology accumulation. With strong technical team we could solve any annoyance of you.

Q2: Do you have quality control system?

A: Yes, quality management system introduced as ISO9001.

Q3: What about the quality feedback of your products?

A: We gained recognition of 160+ customers in 20 countries and areas and established long-term business relationships with us.

Q4: What is the delivery time?

A: Within 20-45 days for bulk production, which is depend on quantity.

Q5: What is your main payment term?

A: T/T, L/C, D/A, D/P either is available.



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