Hydraulic cylinder seal kits are used to seal the gap between different parts of the hydraulic cylinder. The function of hydraulic cylinder seal kits is to prevent oil leakage, to assure the working pressure of the hydraulic system, to maintain its power.
Boom Cylinder seal kit is, as the name suggests, fitted into the boom cylinder.
There are regularly three cylinders for the excavator, boom cylinder, arm cylinder, bucket cylinder.
Arm cylinder is the top one, and it's usually be called as top cylinder;
The bucket cylinder is the one that connects and controls the bucket.
Boom cylinder is the one (or the two) near the cabin. Usually, there is one piece boom cylinder for the small excavator under 10-tun; the bigger excavator's two pieces boom cylinders. But there is an exception too when the driver will remove one piece for a special purpose, say at some particular working place, it is convenient to work by one cylinder. Soft remind: all refit job should be operated by an experienced technician.

When you open and repair the cylinder, please follow below operation:

1. Take off the cylinder from the machine.

2. Remove the head assembly and the rod assembly from the stick cylinder group.

3.If it always happens that the seal kit not perform well soon after it fitted, there maybe problem of the cylinder assembly itself. It is better to check the cylinder assembly whether need to change it.

4.Meansure the seal kits before fitting.

5.Install the seals.

After fix the cylinder assy, test it first before reinstall the stick culinder group on the machine.

Part No

Parts name

Part No

Parts name

707-02-X7440

CYLINDER GROUP,L.H. (FINAL COATING)

707-02-X7150

CYLINDER GROUP,L.H. (FINAL COATING)

17A-63-X2110

CYLINDER GROUP,L.H.

707-02-X7450

CYLINDER GROUP,R.H. (FINAL COATING)

707-02-X7160

CYLINDER GROUP,R.H. (FINAL COATING)

17A-63-X2120

CYLINDER GROUP,R.H.

707-02-00340

CYLINDER ASS'Y

17A-63-02110

CYLINDER ASS'Y

175-63-22540

CYLINDER

175-63-12540

BUSHING

707-29-12370

HEAD,CYLINDER

707-29-12860

HEAD,CYLINDER

707-52-90520

BUSHING

707-52-10750

BUSHING

707-51-75030

PACKING,ROD

707-51-75211

PACKING,ROD

707-51-75640

RING,BUFFER

144-63-94170

SEAL,DUST

07179-13089

RING,SNAP

07000-12115

O-RING OEM

07146-02116

RING,BACK-UP

07000-02120

O-RING

175-63-22520

ROD,PISTON

707-66-75020

CAP

707-88-15010

SHIM¤ 1.0MM

17A-71-22630

SHIM¤ 1.0MM,(SALTY TERRAIN SPEC.)

01011-81805

BOLT

707-41-11840

WASHER

175-63-22530

PISTON ASS'Y

707-37-12010

PISTON

707-83-10270

VALVE,(L=77.5MM)

707-83-10260

VALVE,(L=80.5MM)

707-83-10280

VALVE,(L=74.5MM)

707-84-10240

SEAT

07000-12055

O-RING

07001-02055

RING,BACK-UP

707-40-12050

RETAINER

707-44-12180

RING,PISTON

707-39-12110

RING,WEAR

707-40-12170

SPACER

707-83-10073

VALVE

01252-31235

BOLT

17A-54-11521

HOOK

01010-51245

BOLT

01643-31232

WASHER

17A-63-14100

VALVE ASS'Y,QUICK DROP

195-63-14180

SPRING

01642-21216

WASHER

195-63-14162

COLLAR

01011-51615

BOLT

01643-31645

WASHER

17A-63-12170

TUBE,L.H.

17A-63-12270

TUBE,R.H.

07000-13030

O-RING

01010-50840

BOLT

01010-50855

BOLT

01643-30823

WASHER

17A-63-12180

TUBE,L.H.

17A-63-12280

TUBE,R.H.

07000-13048

O-RING

01010-51275

BOLT

07000-13038

O-RING

07000-13045

O-RING

01010-51065

BOLT

01643-31032

WASHER

07282-12793

CLAMP

01010-51020

BOLT

707-99-44180

SERVICE KIT

707-98-44200

SERVICE KIT

FAQ

Q1. What is your terms of packing?

A: Generally, we pack our goods in neutral white boxes and brown cartons. If you have legally registered patent, we can pack the goods in your branded boxes after getting your authorization letters.

Q2. What is your terms of payment?

A: T/T 30% as deposit, and 70% before delivery. We'll show you the photos of the products and packages before you pay the balance.

Q3. What is your terms of delivery?

A: EXW, FOB, CFR, CIF.

Q4. How about your delivery time?

A: Generally, it will take 20 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order.

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Our company professional to provide you with high quality excavator parts, variety complete, provide one-stop shopping for you,

We can freight and containerize you cargo as well as arrange overseas shipping to any port in the world! We devote ourselves to set up a sound sales network, warmly welcome the clients from all the world to contact us for any enquiry, we'll try our efforts to provide professional service to satisfy you.

Guangzhou Sonka Engineering Machinery Co., Ltd.

Loion: Guangzhou, China

Business scope:excavator spare parts

Fit for machine model brand: Komatsu, Hitachi, Kobelco, Kato, , Daewoo, Sumitomo, Hyundai, Volvo

Start

Sonka Company grew out of Global Engineering Machinery.

Time back in 2009, a spare parts shop named GLOBAL ENGINEERING MACHINERY established in Guangzhou City. Soon but stably, it sold its spare parts to more than 30 cities in domestic China in the same year, with the fame spreading far and wide, for the good product quality and service.

At that time the shop mainly sold mainly in seal and seal kits lines: excavator seal kits, loader seal kits, bulldozer seal kits, breaker seal kits and other construction machinery-related seals.

Growing

To meet customer’s growing needs on seal kits, in 2013, a new company named Guangzhou Huanqiu Seal Technology Co. LTD was set up to handling the seal factory. Factory manufactures all kinds of seals for construction machinery.

It then lay solid foundations for oncoming development.

HQPA stands for High Quality Product Assurance!

Expand

With rich experience and established technique, customers are satisfied with our seal kits for high quality and good performance.

And we would like to share these seal kits with the world outside China. In the year of 2014, we creates the Guangzhou Sonka Engineering Machinery Co. Ltd, a branch trading company, to deal with all the oversea business.

Prospect

In the year 2020, Sonka Company will upgrade our brand. We will set up Management Service Center in the oversea market to promote our uniform brand all over the world.