APA/JH21 Open-type Precision Pressing Machine

Sourcing note: The APA and JH21 presses described on this page are manufactured by Chin Fong Machine Industrial Co., Ltd. (Taiwan). Foshan DAIDISIKE Optoelectronics Technology Co., Ltd. offers them as a sourcing/integration partner alongside our safety and press-peripheral products; the model names and brands referenced here belong to their respective manufacturer and are not DAIDISIKE-branded equipment.

The APA series is a C-frame single crank press machine produced by Chin Fong Machine Industrial Co., Ltd. in Taiwan. This series is suitable for precision stamping processes such as punching, bending, forming, and shallow drawing, widely used in the production of automotive parts, electronic components, and hardware products. The APA series adopts a high-strength cast iron or steel plate welded frame to ensure strong body rigidity, reduce vibration and deformation, and improve processing accuracy. Standard accessories include inverter, touch pad, preset counter, cam controller, hydraulic overload protection device, mechanical slide adjustment device (GOT and above 60T models), mechanical die height indicator (GOT and above 60T models), electric die height indicator (over 60T models), balance device, crank angle indicator, speed indicator, air source receptacle, second fall protection device, misfeed detection device, power socket, maintenance tool box, and anti-vibration press mount. Optional accessories include auto grease pump (over 110T models), pneumatic die cushion, foot switch, quick die change device (including die lifter, clamp and die arm), slide knock-out device, die room light, safety light sensor, feeder, unloader, straightener, and mechanism hand. This series emphasizes frequency conversion energy, precision, and efficiency, equipped with high driving torque wet clutch and brake, providing high-performance, low inertia, high torsion, low noise, dust-free, long service life, and low maintenance cost features.

Detailed technical parameters are shown in the following table (based on the provided specification data, including comparisons of multiple models):

(Continued table, for larger models like APA-110 to APA-400, parameters extend similarly: capacity from 110 to 400 tons, strokes/minute from 60 to 30, die height from 300 to 450mm, etc. Detailed data can be adjusted based on specific models.)

Working Principle: The working principle of the APA series single crank press machine is based on the mechanical crank-link mechanism, converting the rotary motion of the electric motor into the vertical reciprocating motion of the slide. The electric motor drives the flywheel to store kinetic energy, connected to the crankshaft through a wet multi-plate friction clutch. When the clutch engages, the crankshaft rotates to drive the connecting rod to push the slide downward to stamp the workpiece. The slide applies maximum torque at the bottom dead center and returns to the top dead center through the crank mechanism. The hydraulic overload protection device monitors the load, and if it exceeds the rated capacity, the system automatically releases pressure to protect the die and body. The inverter controls the motor speed to achieve variable stroke rate, optimizing energy conversion efficiency. The entire process emphasizes precise control, using six-point gibbing to reduce lateral deviation and ensure high repeatability. Professional terminology description: This model adopts high driving torque wet clutch & brake, providing high-performance, low inertia, high torsion, low noise, dust-free, long service life, and low cost of maintenance.

The JH21 series is an open-type one-point fixed bed press machine produced by Chin Fong. This series is designed for high-precision stamping, suitable for precision grinding of large gears and gear shafts, reducing operating noise, providing dry or wet pneumatic friction clutch and brake to ensure smooth operation and accuracy. Product features include welded steel plate or wet pneumatic friction clutch body, high-strength welded frame, SIEMENS main motor, dry pneumatic friction clutch and brake, oil-immersed gear, hydraulic overload protection device, electric lubrication system, manual thin oil lubrication, PLC control automatic feeding device, capable of forming single-machine automation or multi-machine automation stamping production line. Standard accessories include hydraulic overload protection device, inverter, touch pad, preset counter, cam controller, slide adjustment device, balance device, crank angle indicator, air source receptacle, second fall protection device, misfeed detection device, power socket, maintenance tool box, anti-vibration mount. Optional accessories include auto grease pump, pneumatic die cushion, foot switch, quick die change device, slide knock-out device, die room light, safety light sensor, feeder, unloader, straightener, mechanism hand. This series emphasizes frequency conversion energy, precision, and efficiency, suitable for continuously variable strokes, improving stamping process requirements and production efficiency.

Detailed technical parameters are shown in the following table (based on the provided data and supplements):

(Continued table, for larger models like JH21-160 to JH21-500, capacity from 1600 to 5000kN, strokes from 45 to 25, etc.)

Working Principle: The working principle of the JH21 series open-type one-point press machine adopts dry or wet pneumatic friction clutch and brake. The electric motor drives the flywheel through a belt to store energy. When the operator presses the two-hand buttons, the clutch engages, driving the crankshaft to rotate, and the connecting rod converts rotation into linear motion of the slide for stamping. The hydraulic overload protector releases oil pressure when the load exceeds limits to protect the machine. The electric grease lubrication system ensures component lubrication, and PLC control enables automated feeding and multi-machine linkage. Professional terminology description: This model provides high-performance wet clutch, hydraulic overload protection, electric grease lubrication system, manual thin oil lubrication, suitable for continuous stamping production lines, improving production efficiency and precision.

The APE series is a C-frame single crank press, similar to APA but enhanced for precision metal stamping with focus on high driving torque wet clutch and brake. The product adopts super rigid steel frame to reduce deflection, providing accurate pressings and longer die life, even at full tonnage loads. Standard accessories include inverter, touch pad, preset counter, cam, hydraulic overload protection device, mechanical slide adjustment device, balance device, crank angle indicator, air source receptacle, second fall device, misfeed detection device, power socket, maintenance tool box, anti-vibration mount. Optional accessories include auto grease pump, pneumatic die cushion, foot switch, quick die change device, slide knock-out device, die room light, safety light sensor, feeder, unloader, straightener, mechanism hand. This series emphasizes high driving torque wet clutch and brake, providing high-performance, low inertia, high torsion, low noise, dust-free, long service life, and low maintenance cost.

Detailed technical parameters are shown in the following table (based on the provided data and supplements):

(Continued table, for models like APE-160, capacity 160 tons, strokes/minute 50, etc.)

Working Principle: The working principle of the APE series single crank press machine is based on a reinforced crank-link system, where the electric motor drives the flywheel, connected to the crankshaft through high driving torque wet clutch, converting to slide reciprocating motion. Fast response hydraulic overload protection ensures safety. Six-point precise gibbings enhance stability. Professional terminology: Super rigid steel frame, extra long precise six-point gibbings, fast response hydraulic overload protection, high-performance torque wet clutch.

The APC series is a C-frame double crank press machine, suitable for large-area stamping such as automotive panels and home appliance parts. It adopts high-strength welded steel plate frame to improve stability and accuracy. Standard accessories include inverter, touch pad, preset counter, cam, hydraulic overload protection device, slide adjustment device, balance device, auto grease pump, crank angle indicator, air source receptacle, second fall protection device, misfeed detection device, power socket, maintenance tool box, anti-vibration mount. Optional accessories include pneumatic die cushion, foot switch, quick die change device (die lifter, clamp arm), slide knock-out device, die room light, safety light sensor, feeder, unloader, straightener, mechanism hand. This series provides double crank design to ensure uniform force distribution and reduce deflection.

Detailed technical parameters are shown in the following table (based on the provided specification data):

Working Principle: The working principle of the APC series double crank press machine uses a double crankshaft system, where the electric motor drives the flywheel, and the wet clutch simultaneously drives two cranks to ensure even slide pressure, suitable for large workpieces. Hydraulic overload protection releases pressure during overload. Professional terminology: Super rigid frame, extra long six-point gibbings, high driving torque wet clutch, fast response hydraulic overload.

The APD series is a D-frame single crank press machine, suitable for stamping with high rigidity requirements, using semi-closed frame to provide better rigidity and precision support. Product features include heavy one-piece steel frame, minimizing deflection, high accuracy, OMPI pneumatic dry clutch and brake, longer service life, 6 points slide guiding. Standard accessories include inverter, touch pad, preset counter, cam, hydraulic overload protection device, electric slide adjustment indicator, balance device, crank angle indicator, air source receptacle, second fall protection device, misfeed detection device, power socket, maintenance tool box, anti-vibration mount. Optional accessories include auto grease pump, pneumatic die cushion, foot switch, quick die change device, slide knock-out device, die room light, safety light sensor, feeder, unloader, straightener, mechanism hand.

Detailed technical parameters are shown in the following table:

Working Principle: The working principle of the APD series D-frame single crank press machine is based on ultra-high rigidity straight-column reinforced frame, where the electric motor drives the flywheel, connected to the crankshaft through dry pneumatic clutch, converting to slide reciprocating. Heavy one-piece steel frame resists deflection, providing accurate stamping and long die life. Professional terminology: OMPI pneumatic dry clutch brake, 6 points slide guiding, minimizing deflection.

Specs reviewed by Engineer Cai, Senior Application Engineer. See certificates.