Product Introduction

The small end assembly is a key connecting and sealing component of the S-valve system in concrete pump trucks. Installed at the connection between the small end of the S-pipe and the discharge outlet, it provides rotational support, sealing and wear resistance, ensuring flexible switching of the S-valve and stable concrete delivery. Compatible with mainstream brands such as SANY, Zoomlion and XCMG. Main components include:

• Small end shaft and connecting parts
• Wear-resistant bushings and bearings
• Sealing components (sealing rings, oil seals, etc.)
• End covers and retaining parts

Product Advantages

• Reliable sealing: precisely matched with the small end of the S-pipe to effectively prevent concrete leakage
• Wear resistant & durable: key parts made of wear-resistant materials to withstand friction and impact for a long service life
• Smooth rotation: precise fit of bushings and bearings ensures flexible switching and stable movement of the S-valve
• Pressure & corrosion resistant: performs reliably under high-pressure pumping and slurry conditions
• Complete size range: fits multiple brands and models with easy installation for quick replacement