Products and references

Since 2004 we have delivered 118 assembly lines, test benches and special machines to manufacturers of excavators, pump trucks, truck cranes, mining roof supports and air-conditioner compressors.

Latest deliveries

Recent hydraulic-cylinder assembly lines, tightening and press-fit machines we designed and built.

Mid-excavator cylinder automated assembly line (1)

Mid-excavator cylinder automated assembly line (2), overall

Mid-excavator cylinder: automatic piston-rod insertion and screw-hole phasing

Automatic piston-rod, piston and nut tightening sub-assembly line

Extra-high-torque piston-nut tightening machine

Automatic press-fit machine for washer-drum bearings and seals

Excavator cylinder assembly stand-alone machine

On site

Horizontal cylinder assembly for truck cranes

Luffing cylinder assembly for truck cranes

Automotive A/C compressor final assembly line

Photographs were taken at delivery.

Reference list

Hydraulic-cylinder assembly for construction machinery

24 items

Assembly lines and automatic transfer units for pump-truck vertical cylinders, horizontal, luffing and short cylinders.

Automated final assembly for pump-truck vertical cylinders

Short-cylinder line: piston-rod insertion

Pump-truck vertical cylinder assembly line

#210Piston-rod sub-assembly machine
#207Discharge conveyor for finished vertical cylinders
#206Horizontal cylinder assembly
#204Horizontal cylinder assembly (2)
#203Horizontal cylinder assembly (3)

Roof-support cylinder assembly for coal mining

16 items

Automated lines for prop and jack cylinders: horizontal loading, multi-station flow.

Automated prop-cylinder assembly line (2009)

Automated prop-cylinder line (horizontal, multi-station)

#187Automated jack-cylinder assembly line
#186Jack-cylinder automated assembly
#185Jack-cylinder piston-rod sub-assembly machine
#184Automated prop-cylinder assembly line (2)
#183Automatic workpiece transfer line
#220Prop-cylinder line — guide-sleeve tightening
#221Prop-cylinder assembly — stand-alone machine

Excavator hydraulic-cylinder assembly

8 items

Complete excavator cylinder lines since 2004, upgraded in 2008 and fully automated in 2020.

#109Excavator cylinder assembly line (built 2004)
#108Excavator cylinder assembly line (2008)

Excavator cylinder factory test benches

6 items

Factory performance test benches delivered complete with hydraulic unit, HMI and layout.

#178Factory performance test bench for excavator cylinders
#177Excavator cylinder test bench: general layout
#176Excavator cylinder test bench
#175Hydraulic unit (Yuci Yuken)
#174Test-bench parameter-setting screen

Stand-alone machines for cylinder assembly

14 items

Piston-ring press-fit and sizing machines, bearing presses, connecting-rod insertion, weld-spatter removal and more.

Cylinder-tube weld-spatter removal machine (3)

#124Cylinder-line control box
#123Cylinder transfer unit
#122Connecting-rod bushing press
#121Connecting-rod insertion machine
#120Automatic piston tightening machine, servo torque control (1)
#119Automatic piston tightening machine, servo torque control (2)
#118Automatic piston tightening machine, servo torque control (3)
#113Weld-spatter removal machine for excavator cylinder tubes (2)
#222Guide-sleeve marking machine
#223Piston-rod bushing press-fit + piston-nut pre-assembly

Automotive A/C compressor assembly lines

25 items

Final assembly lines for scroll and piston compressors: oil filling, main-shaft tightening, performance testing.

Long-bolt tightening machine for A/C compressors

#189Automatic piston feeder
#188Automatic connecting-rod feeder
#163Automatic oil-filling unit
#162Automatic oil-filling and weighing system
#161Automatic main-shaft bolt tightening machine
#160Main-shaft clearance measurement
#159Suction/discharge performance test
#224Bus air-conditioner compressor assembly line

Room A/C compressor assembly lines

18 items

Room A/C compressor lines, prototype lines and shrink-fit cooling lines.

#192Automated scroll-compressor assembly line
#190Shrink-fit cooling line for scroll compressors
#138Prototype assembly line for room A/C compressors
#136Room A/C assembly line
#135Room A/C assembly line 2
#134Room A/C assembly line 3
#133Room A/C assembly line 4

Other special-purpose machines

7 items

Cylinder-head inverters, rotary grippers, CRT-frame welders, washing-machine drum bearing and seal press-fit machines and other special machines.

Long-term cooperation agreement with SANY

#147180° cylinder-head inverter
#146Rotary gripper
#145Special cylinder assembly
#144CRT-frame welding machine
#143Washing-machine drum bearing & seal press-fit machine

May 2011: long-term cooperation agreement with SANY

Long-term partnership with SANY

In May 2011 we signed a long-term cooperation agreement with SANY (Loudi Zhongxing Hydraulic Parts) covering automated cylinder assembly equipment and related products. Since then we have delivered automated lines for pump-truck vertical cylinders and roof-support prop cylinders, water-pump cylinder assembly machines and more.