Hydraulic Support Roof Cylinder for Underground Coal Mining with Longwall Face Coal Mining

• Customization: Available
• Certification: GS, CE, EAC;GOST;Aqa
• Pressure: Medium Pressure
• Work Temperature: Normal Temperature
• Acting Way: Double Acting
• Working Method: Straight Trip
• Adjusted Form: Telescopic Type
• Structure: Piston Type
• Material: 27simn,40cr,30crmnsi
• Delivery Time: 20 Days
• Outer Tube Diameter: 280mm
• Rod Diameter: 180
• Maximum Stroke: 1500mm
• Warranty: 14 Months From Production Time
• Working Pressure: 31.5-45MPa
• Color: as Customer′s Requirement
• Temperature: -30~+80 Degree Centigrade
• Transport Package: Pallets/Plywood
• Specification: 280/180*1500
• Trademark: WTJX
• Origin: Shandong, China
• HS Code: 8412210090
• Production Capacity: 300, 000 Sets / Year

Product Description

Product Description
All products have passed TS/ISO16949 international quality system certification,national safety validation for mining products.

Product advantage
1.High quality material selection, special processing technology, high wear resistance and corrosion resistance, superior performance, can meet the requirements of extreme harsh use environment.
2.Long safe service life, low maintenance costs.
3.The products has passed the safety mark certification of China Academy.

Specification   

Item	Value
Product Name	Prop Hydraulic Cylinder
Outer Tube Diameter	280mm
Inner Tube Diameter	260mm
Rod Diameter	180mm
Maximum Stroke	1500mm
Weight	569.1kg
Warranty	14 Months
Working Pressure	31.5-45 Mpa
Place of Origin	Shandong,China
Color	Client's Request

Company Profile
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 Equipment
The company has more than 1000 sets of machinery processing,automatic precision processing, cold drawing, electroplating, heat treatment, automatic painting system, automatic assembly control system, automatic welding and other equipment. With the processing of cylinder diameter 630mm, length of 6 meters within the cylinder of the whole process processing capacity.

Quality Control
>All specification is designed by professional engineer.
>All material is high quality-Seal kits were purchased from USA, Japan, UK and Sweden.
>All material is processed by skilled workers and advanced CNC lathe.
>All cylinders are 100% tested before package to ensure every cylinder is qualified for its purpose.
>Package is air cushion film for each cylinder and steel case for all cylinders to ensure goods can arrive at customer safely.
>14 months' warranty and long time track service is offered to solve any problems you meet after sale.

Quality Inspection
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. Every piece of hydraulic cylinder are tested and will send out only after they are pasted the each test.
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

Product Process


Special Process

Packing & Delivery

To better ensure the safety of your goods, professional, environmentally friendly, convenient and efficient packaging services will be provided.

Plywood Case, or according to your requirements, We will pack and ship the products in strict accordance with the requirements to ensure that they can be delivered to our esteemed customers in perfect condition.

Certificates

Our Customer
Domestic Marketing Locations
The company's products are widely sold in Shandong, Shaanxi, Shanxi, Henan, Hebei, Hubei, Beijing, Inner Mongolia, Gansu and other more than 20 provinces, municipalities and autonomous regions.

Foreign Marketing Locations
Our products are exported to the United States, Canada, Mexico, Russia, South Africa, Indonesia and other Europe, America, South America, Southeast Asia.

FAQ
Q1: Are you a factory or a trader?
A: 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?
A: We can accept both.

Q3: What is your after-sales service?
A: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?
A: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 long is your delivery time?
A: 10-25 days.

Q6: Which trade terms do you support? Is it possible to pay by installments?
A: Any terms are acceptable, such as EXW, FOB, CIF, DDP, etc. Installment is supported, it needs to be discussed specifically based on the order amount.

Q7: What is your payment term?
A: Usually, we choose T/ T.

Our Service
(1)The sale service: Provide training and technical support for users.
(2)After-sale service: Solve the problem firstly, then analyse responsibility ; Replace the system components immediately if any need. 
(3)24 hours telephone service hotline.