BELLOWS

  〓 PRODUCT FEATURES  

Galvanized steel strip material, ring stiffness ≥8kN/m², compression-resistant and non-flattened tube;

Double-wall corrugated structure, low friction coefficient (μ≤0.25), easy to wear;

Acid and alkali resistant, anti-aging, service life of more than 50 years.

  〓 MAIN PURPOSE  

Provide a hole-making channel for prestressed tendons, and protect steel strands from concrete corrosion

  〓 APPLICATION SCENARIOS  

Curved channels of cast-in-place floor slabs, linear channels of prefabricated segmental bridges, and prestressed systems for nuclear power plant containment.

  〓 INSTALLATION POINTS  

Erect positioning bars according to the design coordinates, with a spacing of ≤0.8m, and the curved sections are densely fixed;

The joints are sealed with special sleeves for hot melt, and direct collision of the vibrator is prohibited when pouring concrete.

Structural safety Intelligent tensioning eliminates human errors, ensures uniform distribution of prestress, and prevents bridge cracking and deformation	Efficient advancement Multi-equipment collaboration and automated operation shorten the construction period of large-span, multi-channel bridges.	Full-scenario coverage From coastal corrosive environments to extremely cold plateaus, the equipment can output stably, reducing engineering restrictions.	Low maintenance cost Highly durable materials and processes significantly extend the service life of bridges and reduce later maintenance investment

URBAN ELEVATED ROAD Lightweight jacks and low-noise pump stations to adapt  to nighttime construction and narrow space constraints
	CROSS-SEA BRIDGE Corrosion-resistant anchor and bellows combination  to resist high-salt environment
HIGHLAND RAILWAY Low-temperature electric pump stations and antifreeze  hydraulic oil for stable operation in extremely  cold environments