PM S-Tube Chrome Bushing

Alloy steel bushing with hard-chrome surface for the S-tube (S-valve) system of concrete pumps, working with the wear ring in areas exposed to high pressure and friction.

Key features:
• Workmanship: CNC-machined inner and outer surfaces for full contact with S-tube and wear plate
• Thermal resistance: Keeps performance under temperature changes
• Mounting: Compatible dimensions, quick replacement on site

Material: Alloy steel body + hard chrome plating
Surface hardness: 60 – 65 HRC
Inner diameter: 140 mm – 160 mm depending on model
Compatibility: PM Q60, Q80, Q90, PM 60, PM 90 S-tube systems
Mounting: Press-fit or flanged (depending on model)