Arm Cylinder Seal Kit for Sany 225 Excavator Repair

This JSY22.5-DG arm cylinder seal kit is used for Sany 225 excavator arm cylinder repair with Rod 100mm specification. It is designed to help restore hydraulic sealing performance when the arm cylinder has oil leakage, weak digging force, pressure loss, slow movement, or unstable cylinder holding performance.

The arm cylinder is one of the key working cylinders in the excavator hydraulic system. It works continuously during digging, pulling, loading, trenching, lifting, and heavy-duty earthmoving operations. When the seals become worn, aged, hardened, cracked, or damaged, hydraulic oil may leak from the cylinder rod area, and the excavator may lose stable arm pulling power. Replacing the damaged seals with the correct arm cylinder repair kit is a practical way to rebuild the cylinder and reduce downtime without replacing the complete arm cylinder assembly.

Product Parameters

Main Selling Points

Matched for Rod 100mm Arm Cylinder
This seal kit is matched with Rod 100mm and part number JSY22.5-DG, suitable for Sany 225 arm cylinder maintenance. Buyers can confirm the item by rod size, part number, machine model, and cylinder position.

Helps Restore Digging and Pulling Performance
A damaged arm cylinder seal may cause hydraulic oil leakage, weak arm movement, cylinder drifting, pressure drop, and slow response. This hydraulic cylinder seal kit helps rebuild the sealing system and improve excavator working performance after maintenance.

Cost-Effective Hydraulic Repair Solution
Using the correct excavator cylinder repair kit can reduce maintenance cost and shorten machine downtime compared with replacing the complete arm cylinder. It is suitable for excavator owners, hydraulic repair workshops, fleet maintenance teams, and spare parts resellers.

Easy for Stock and Mixed Orders
The kit is supplied as one complete set, easy to identify, store, and ship. It can be ordered together with boom cylinder seal kits, bucket cylinder seal kits, hydraulic pump seal kits, control valve seals, rod seals, piston seals, dust seals, wear rings, and O-ring kits.

Application

This arm cylinder seal kit JSY22.5-DG is suitable for Sany 225 excavator arm cylinder repair with 100mm rod size. It is commonly used when the machine shows hydraulic oil leakage around the arm cylinder rod, weak arm pulling force, unstable holding, slow arm action, or reduced hydraulic response.

For customers purchasing multiple excavator repair parts, we can help match related hydraulic seal kits and spare parts according to machine model, part number, rod size, cylinder photos, or old seal kit sample details.

Buyer Reminder

Please confirm the part number JSY22.5-DG, rod size 100mm, machine model Sany 225, and cylinder position before ordering. If you are not sure whether this seal kit fits your excavator, send us the machine model, cylinder rod size, part number, cylinder photos, or old seal kit sample details. We can help check the correct item before shipment.

Equipment names and part numbers are used for reference and identification only.

Primary Keywords: arm cylinder seal kit, hydraulic cylinder seal kit, excavator seal kit, cylinder repair kit
Long-tail Keywords: JSY22.5-DG arm cylinder seal kit, Rod 100mm arm seal kit, Sany 225 arm cylinder seal kit, YNF18321 seal kit, excavator arm cylinder repair kit, hydraulic arm cylinder seals