HONGDA S-valve serial high-pressure pumps,Z-gate-valve serial medium-pressure pumps and D-butterfly-valve serial low-pressure pumps are concrete transport equipments widely applied to such building projects as urban construction,bridge,power,and energy sources,etc. The machines adopt such world advanced techniques as open hydraulic loop,distribution valve pensating clearance,constant power control, total hydraulic automatic change,and electric proportional control,etc., carried out deep and meticulous studies and experiments in many aspects like concrete piston self-lubricating,etc.,and has won many patents. HONGDA pump trailer is a new product at international level which is developed by combining latest technologies both at home and abroad. HONGDA pump trailer contains three series and more than twenty product types,and HONGDA is the professional producing base with most complete models and specifications in CHINA, which can fully meet various needs of all customers. HONGDA pump trailer all adopts steamline production assembly while the company strictly controls all the machining processes and assembly quality and gives final test to every pump trailer by simulation working conditions and overload experiments to ensure customers’ zero fault in the first operation.

Pictures:
Original imported GERMANY DEUTZ engine	Hard alloy eyeglass plate and incising ring	Original imported AMERICA EATON VICKERS valve
Original imported hose buckling equipment	Oil tank warmed pickling and phosphorization	Original imported GERMANY REXROTH main oil pump
Control system	Polluting level detector	Hydraulic system filtering
Cleaning steel pipes and hose	Baking finish	GERMANY EMB connector and ITALY MANULI hose
Automatic Lubrication Oil	Maintenance space	Cisterns
Picture 1	Radiator	Pipeline
Hopper	Filters	HBT concrete pump

[HBT-S-valve serial pump trailer main technical parameters]