707-99-77300 7079977300 Boom seal kit of PC750SE-7 PC750-7

1. Quick Details of  seal 707-99-77300:

2. 707-99-77300 parts on group :

3.  707-99-77300 picture:

4. Service part number :

 
5. FAQ

Q: What engineering machine does part number 707‑99‑77300 support for overhaul jobs?
A: Part number 707‑99‑77300 cylinder seal kit is designed for wheel excavator steering cylinder assembly maintenance and complete overhaul service.

Q: What sealing result can part number 707‑99‑77300 bring to the steering cylinder hydraulic system?
A: Part number 707‑99‑77300 cylinder seal kit keeps stable hydraulic pressure during wheel steering actions, cuts down internal pressure loss during frequent direction changes, and blocks road dust and muddy splashes from getting inside the cylinder and damaging precision contact surfaces.

Q: What raw materials make up this steering cylinder seal kit?
A: Dynamic rod seals adopt high‑wear‑resistant PU polyurethane, static sealing O‑rings use oil‑resistant NBR nitrile rubber, and PTFE anti‑wear backup rings bear lateral force and prevent seal extrusion under sudden pressure fluctuation.

Q: What color features do these sealing spare parts have?
A: PU sealing parts are matte black, NBR rubber accessories are deep jet‑black, PTFE anti‑wear backup rings are light milky white.

Q: What sealing components are included inside this full repair kit?
A: It contains piston seals, rod seals, shock buffer rings, PTFE backup rings, dust wiper seals and various sizes of matched O‑rings for cylinder reassembly.

Q: What sealing accessories are packed inside this whole repair kit?
A: It includes piston seals, rod seals, buffer rings, PTFE backup rings, dust wiper seals and multiple specifications of matching O‑rings for cylinder reassembly.

Q: Where is this cylinder seal kit assembled on articulated dump truck?
A: These sealing components are fitted inside cylinder barrel and cylinder head, surrounding piston and reciprocating hoist cylinder rod.

Q: What sealing accessories are contained within this whole repair kit?
A: It includes piston seals, rod seals, pressure buffer rings, PTFE anti‑extrusion rings, dust wiper seals and multi‑size matched O‑rings for cylinder reassembly.

Q: Can the sealing combination stop internal leakage and external oil seepage effectively?
A: Multi-stage sealing structure greatly reduces the risk of hydraulic oil leakage.

Q: Can this product prevent hydraulic oil leakage effectively?
A: The precise size design effectively reduces internal leakage and external oil seepage.

Q: What construction scenarios often require this arm cylinder seal kit for regular maintenance?
A: It is widely used for maintaining mini excavators working on villa foundation projects, landscape engineering, pipeline trenching and rural road reconstruction.

6. Exhibition and Wearhous

Oil seals,Hydraulic Seals, Cylinders Seal Kits, And More