This kind cylinders are used in aerial decice specially.with high steady and safty, and good sealing system.key part of machine.

.1.Boom cylinder

 Modle: 21Y-86-20000 (right)

 Bore:120 mm

 Rod: 85 mm

 Stroke:1285 mm

 Working pressure: 34.3 Mpa

2.Arm cylinder

 Modle: 21Y-86-30000

 Bore:135 mm

 Rod: 95 mm

 Stroke: 1490 mm

 Working pressure: 34.3 Mpa

3.Bucket cylinder

 Modle: 21DAYG-30-00A

 Bore:115 mm

 Rod: 80 mm

 Stroke: 1120 mm

 Working pressure: 35.3 Mpa, Test pressure: 47.1 Mpa, Start prssure : more than 1.4 Mpa

 Working temperature: -20°C-90°C

Suitable for KOMATSU excavator

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