Mining Grade Safety Operation Telescopic Double Acting Roof Column Hydraulic Cylinder for Underground Mining Adjustable

• Customization: Available
• Certification: CE, Ma;EAC;GOST;Aqa
• Pressure: 31.5-45MPa
• Model NO.: WTCOL 200/185/140/130-750-626
• Work Temperature: -30~+80 Degree Centigrade
• Acting Way: Double Acting
• Working Method: Straight Trip
• Adjusted Form: Telescopic Type
• Structure: Piston Type
• Material: 27simn, 30crmnsi,40cr
• Delivery Time: 20 Days
• Outer Tube Diameter: 200mm
• Maximum Stroke: 1376mm
• Warranty: 14 Months From Production Time
• Working Pressure: 31.5-45MPa
• Color: as Customer's Requirement
• Transport Package: Pallets/Plywood
• Specification: 200*750*626-1400
• Trademark: WTJX
• Origin: Shandong, China
• HS Code: 8412210090
• Production Capacity: 300, 000 Sets / Year

Product Description

Product Description

Mining equipment hydraulic Prop

• Complete equipment, perfect technology, can process 63-630 all cylinder diameter products, with heat treatment, electroplating, automatic painting line and other special processes, with full process processing capacity;
• Strict selection of purchase channels, selection of Shanghai Baosteel, Daye Steel and high-strength materials from other domestic high-quality steel plant, the development of reasonable heat treatment, welding process to ensure that the hydraulic cylinder under high pressure, heavy load has a very high compressive performance;
• Seal selection of Taibao, Youtaike, Weiwan, Hallite and other well-known brands at home and abroad, the use of imported high-quality polyurethane materials;
• It has a variety of perfect surface treatment processes, including milky white chromium+hard chromium, tin bronze+hard chromium, laser cladding stainless steel and inner hole melting copper to meet different needs of customers. The surface hardness of electroplating chromium is ≥ 800HV, the neutral salt spray test is ≥ 720 hours, the surface hardness of laser cladding is HRC50-56, and the neutral salt spray test is ≥ 3000 hours;
• Joint pressure weld all adopt robot welding, weld beautiful, reliable, greatly reducing the risk of weld leakage;
• Customized design can be carried out according to the working pressure, size specifications and installation methods required by customers;

Specification

Packaging & Shipping

Company Profile

Shandong Wantong Hydraulic Co., Ltd. (Stock Code: 920839), founded in June 2004, is a domestic medium and high pressure hydraulic cylinder supplier integrating R&D, production, sales and service. Its main products include three series of hydraulic cylinders for dump trucks, hydraulic cylinders for mechanical equipment and hydropneumatic springs.
The company's management team and main technical personnel are stable. We has constantly innovated from the actual needs of customers, has gradually positioned the medium and high-end market, and has provided high-quality products for customers in automobile, coal mine, petroleum, engineering machinery and other industries with high-quality service.

Production Process

Special Process

Wantong Hydraulic covers an area of 180,000 square meters and has a factory area of 120.000 square meters. It has the ability to process hydraulic products throughout the entire process chain, including cold drawing, electroplating, heat treatment, QPQ, machining, and spraying.

Machining Equipment

Wantong company has more than 1000 sets of equipment including mechanical processing, automated precision processing, cold drawing, electroplating, heat treatment, automated painting system, automatic assembly control system, and automatic welding. The company is capable of processing cylinders with the diameter of 63omm and the length of less than 6 meters throughout the entire process.

Quality Guarantee System

1. Trial Operation Test
2. Start-up Pressure Test
3. Pressure-Tight Test
4. Leak Test
5. Full Stroke Test
6. Buffer Test
7. Testing the Effect of Limit
8. Load Efficiency Test
9. Reliability Test
Every piece of hydraulic cylinder are tested and will send out only after they are pasted the each test. Our company has abundant technical force and perfect testing means. By making wide technical and business cooperation with many related enterprises, universities, colleges and institutes both at home and abroad, and employing senior engineers and software engineers, we have greatly strengthened and improved our designing, processing, and testing abilities.

Certifications

Our Customer

FAQ

Q1: Are you a factory or a trader?
We are a factory, and in China we are a leading enterprise in the hydraulic industry. We have two factories covering an area of 180,000 square meters, with more than 700 employees and more than 1,000 sets of production equipment.
 
Q2: Do you support OEM and ODM?
We can accept both.
 
Q3:What is your after-sales service?
Our products come with a 14-month warranty.lf any quality issues arise during this period,We will replace the parts for free for maintenance, or directly replace the new cylinder.
 
Q4: Do you have any cylinder surface treatment processes?
Our company has 6 complete surface treatment production lines. We can perform chromium plating, zinc plating, copper plating, copper melting ,QPQ,and laser cladding.

Q5:How to ensure the cylinder sealing performance?
We use high-quality imported or domestic first-line brand seals (such as Hallite,Longli, etc.),Our cylinders will undergo pressure resistance tests and pressure holding tests higher than the rated working pressure before leaving the factory to ensure long-term stable operation without leakage within the rated pressure range.

Q6:What is your payment term?
Usually, we choose T/ T.