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31M8-51120 Excavator Arm Cylinder For R55-7 Hyundai Parts ISO9001 Approval

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31M8-51120 Excavator Arm Cylinder For R55-7 Hyundai Parts ISO9001 Approval
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Features
Specifications
Part Number: 31M8-51120
Product Alias: Excavator Hydraulic Arm Cylinder Assy
Product Type: Excavator Hydraulic Cylinder
Surface Treatment: Piston Rod Hard Chromium Plating Cylinder Tube ,Inner Honed
Seal Brand: For Japan NOK And US SKF
Seal Material: PU
Testing: 100% Pressure Testing Before Delivery
Factory Direct Supply: Yes
Highlight:

31M8-51120 Excavator Arm Cylinder

,

R55-7 Excavator Arm Cylinder

,

Hyundai arm hydraulic cylinder

Basic Infomation
Place of Origin: Made In China
Brand Name: Glparts
Certification: ISO9001
Model Number: R55-7
Payment & Shipping Terms
Packaging Details: Wooden Case
Delivery Time: 7 Days
Payment Terms: T/T,Western Union,MoneyGram
Supply Ability: 2000pieces/month
Product Description

31M8-51120 Excavator Hydraulic Arm Cylinder for R55-7 Hyundai Parts

Product Description


 

Product Name

Excavator Hydraulic Arm Cylinder

Model

R55-7

Part Number

31M8-51120

Temperature Range

-20-80°C

Max Operating Pressure

35MPA

OEM

Yes

Certification ISO9001
Material Cylinder Tube 25Mn Piston Rod CK45
Application For Hyundai Hydraulic Cylinder

 

Product Display

 


 

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Why choose us


 

Expertise

With over a decade of experience, we specialize in hydraulic cylinders and excavator parts, ensuring you get reliable solutions every time.

Uncompromising Quality

We use only premium materials and precise manufacturing, guaranteeing durable, high-performance parts for your machinery.

Fast, Reliable Delivery

Our efficient logistics ensure quick delivery, minimizing downtime and keeping your operations running smoothly.

Custom Solutions

Need something unique? We offer tailored parts to meet your exact requirements, designed for optimal performance.

Exceptional Support

From consultation to after-sales service, our dedicated team is always ready to provide expert advice and assistance.

After-sale service

We offer comprehensive after-sales service to ensure your satisfaction. From timely shipment tracking and delivery updates to quality checks during use,were always here to address any concerns and provide support. Your trust is our priority!

 

List of spare parts

 


 

 

Pos.

Part No.

Qty

Part Name

Comments

*.

31M8-51120

1

ARM CYLINDER

 

1

31Y1-22891

1

TUBE ASSY

 

2

31Y1-22350

1

ROD ASSY

 

3

31Y1-16401

1

GLAND

 

4

S732-055030

1

DD2 BUSH

 

K5.

Y200-055011

1

SEAL-ROD

 

K6.

Y180-055020

1

RING-BACKUP

 

K7.

Y240-055011

1

RING-BUFFER

 

K8.

Y110-055011

1

WIPER-DUST

 

9

Y190-069000

1

RING-SNAP

 

10

S632-090001

1

O-RING

 

11

S632-085004

2

O-RING

 

12

S642-085002

1

RING-BACKUP

 

13

S642-085003

2

RING-BACK UP

 

14

31YC-25020

1

RING-CUSHION

 

15

31Y1-24340

1

PISTON

 

K16.

S632-040004

1

O-RING

 

K17.

S642-040003

2

RING-BACK UP

 

K18.

Y450-090000

1

SEAL-PISTON

 

K19.

Y300-090100

1

RING-WEAR

 

K20.

Y440-090000

1

RING-DUST

 

21

31YC-65290

1

NUT-NYLON

 

22

31YC-2A040

1

VALVE-CHECK

 

23

31YC-99070

1

SPRING-COIL

 

K24.

S631-014004

1

O-RING

 

25

P220-110103

1

PLUG-HEX

 

26

31Y1-22911

1

PIPE ASSY-R

 

K27.

Y171-015004

1

O-RING

 

28

S107-080404

4

BOLT-SOCKET

 

29

S071-022230

1

U-BOLT

 

30

S201-101002

2

NUT-HEX

 

31

S411-100002

2

WASHER-SPRING

 

32

31YC-12020

2

BUSHING-PIN

 

K33.

Y010-050060

4

SEAL-DUST

 

34

S651-810002

1

NIPPLE-GREASE

 

 

Company Information

 


 

GuangZhou GuoLi Engineering Machinery Co., Ltd., with over 16 years of experience in excavator hydraulic cylinders, is a foreign trade company specializing in a wide range of products, including crawler excavator arm cylinders, boom cylinders, bucket cylinders, cylinder tubes, cylinder rods, custom hydraulic cylinders, seal kits, hydraulic pumps, and electric parts, all designed for various excavator models. Our products have been exported to over 100 countries and regions worldwide.

 

Factory Tour

 

Our main product, excavator cylinders, is produced through a complete hydraulic cylinder production line, from design to manufacturing. With over ten years of experience, we’ve upgraded our offerings to multi-stage hydraulic cylinders. We focus on cylinder customization and produce a variety of domestic and imported excavator cylinders. Using advanced CNC lathes, grinders, and assembly equipment, we strictly follow ISO quality standards throughout production.

工厂.jpg

Piston Rod Production Process

 

Piston rods are made from tempered steel, induction hardened before chrome plating to prevent bending and scratching. They resist rust for over 100 hours in salt spray tests. Produced and electroplated in-house with mirror finish technology.

31M8-51120 Excavator Arm Cylinder For R55-7 Hyundai Parts ISO9001 Approval 2

Automatic Welding Process

 

The welds are done fully automated for consistency and integrity. With lean welding craft for creating the strong joint strength and eliminating the defect.We adopt the automatic welding process, and the good weld seam can match the appearance of the original parts, and the welded parts are not easy to fall off.

31M8-51120 Excavator Arm Cylinder For R55-7 Hyundai Parts ISO9001 Approval 3

Finished Product Warehouse Display

 

31M8-51120 Excavator Arm Cylinder For R55-7 Hyundai Parts ISO9001 Approval 4

 

 

Exhibition Showcase


 

Our Presence at Major Exhibitions: 2023 Malaysia & 2024 Shanghai Bauma

 

Exhibition With Cooperated Clients

 

展会+.jpg

 

Certificates

 


 

Certification

证书.jpg

FAQ


 

 

1.How can I be sure the part will fit my excavator ?

  • Give us correct model number /machine serial number /any numbers on the parts itself.

  • Or measure the parts give us dimension or drawing.

 

2.What material do you use on hydraulic cylinder?

  • High frequency quenching No.40 manganese steel as rod material so the cylinder rod has better bending resistance.

  • No.25 manganese steel as tube material ,so the tube has better wear resistance,

    High-strength hardened steel as rod head and tube head ,so the cylinder head and rod head more durable.

  • Name-brand seal kits to reduce the hydraulic cylinder oil leakage rate.

 

3.How long can an order delivery?

  • For some often used models of excavator hydraulic cylinder , we have in stock, within 7 days .

  • For any order less than one container takes about 2 weeks to finish; Order of 1-2 container takes 4 -6weeks.

  • At busy manufacturing season, manufacturing time needs more which can confirm by discussion.

 

4.How to pay?

  • Order less than 3000USD, full payment at order, Order over USD3000 value ,50% deposited in to start,

    50% balance paid to deliver,inspection service accepted.

  • For customized order, 70%payment as deposit ,30% balance paid to deliver.

 

5.How to delivery?

  • If you have shipping agent ,we will cooperate with your agent to arrange shipment .

  • If not , we have good relationships with shipping companies, express suppliers.

  • For light goods ,by UPS/DHL/TNT(DAP terms) , For heavy goods ,by sea (FOB,CIF,CFR)

 

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Tel : 13081912597
Fax : 86-86-13081912597
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