JH21 Type High Performance Press Machine
Product Features
1. Steel plates welded as machine body, treated to remove internal stress, marked with high rigidity;
2. Crankshaft longitudinally arranged, compact structure and beautiful outlook;
3. Hexagonal guide rails of extra length, guide in high precision;
4. Combined-type pneumatic friction clutch-brake, steady engagement, low noise level;
5. Hydraulic overload protection device for JH21 and rigid protection device for JF21 to prevent damage of the machine tools due to overload;
6. PLC-controlled electric circuit, safety duplex valve for air pipelines, flexible and highly sensitive in movement,safe and reliable, single time, inching and continuous operations for options, conforming to the safety standard for stamping machines
Product Description
Specification:
| Specification | Unit | JH21-25 | JH21-45 | JH21-60 | JH21-80 | JH21-110 |
| JF21-25 | JF21-45 | JF21-60 | JF21-80 | JF21-110 | ||
| Capacity | Ton | 25 | 45 | 60 | 80 | 110 |
| Rate tonnage point | mm | 3 | 4 | 4 | 5 | 5 |
| Stroke | mm | 80 | 120 | 140 | 160 | 180 |
| Stroker per Minute | s.p.m | 100 | 80 | 70 | 60 | 50 |
| Die height | mm | 250 | 270 | 300 | 320 | 350 |
| Slide adjustment | mm | 50 | 60 | 70 | 80 | 90 |
| Depth of Throat | mm | 210 | 225 | 270 | 310 | 350 |
| Distance betweenuprights | mm | 450 | 500 | 560 | 620 | 660 |
| Slide area | mm | 360ｘ250 | 410ｘ340 | 480ｘ400 | 540ｘ460 | 620ｘ520 |
| Shank hole | mm | ∅40ｘ60 | ∅50ｘ60 | ∅50ｘ60 | ∅50ｘ60 | ∅70ｘ80 |
| Bolster area | mm | 720ｘ400 | 810ｘ440 | 870ｘ520 | 950ｘ600 | 1070ｘ680 |
| Size opening in the table | mm | 150 | 150 | 150 | 150 | 160 |
| Distance from worktable to ground | mm | 780 | 800 | 900 | 900 | 900 |
| Main motor | kw.p | 2.2ｘ4 | 5.5ｘ4 | 5.5ｘ4 | 7.5ｘ4 | 7.5ｘ4 |
| Slide adjust device | HP | manual operation | electrial driving | |||
| Air pressure | kg/cm² | 6 | ||||
| Presses precision | GB/JIS 1 class | |||||
| Presses dimension | mm | 1520ｘ1060ｘ2120 | 1620ｘ1130ｘ2340 | 1690ｘ1160ｘ2650 | 1870ｘ1170ｘ2810 | 2020ｘ1315ｘ2985 |
| Die cushion capacity | Ton | 4.5 | 4.5 | 6 | 6 | 8.5 |
| Stroke | mm | 50 | 50 | 60 | 60 | 70 |
| Die cushion effective area | mm² | - | 300ｘ230 | 350ｘ300 | 450ｘ310 | 500ｘ350 |
| Specification | Unit | JH21-125 | JH21-160 | JH21-200 | JH21-250 | JH21-315 | JH21-400 |
| JF21-125 | JF21-160 | JF21-200 | |||||
| Capacity | Ton | 125 | 160 | 200 | 250 | 315 | 400 |
| Rate tonnage point | mm | 5 | 6 | 6 | 7 | 7 | 8 |
| Stroke | mm | 180 | 200 | 250 | 250 | 250 | 280 |
| Stroker per Minute | s.p.m | 50 | 45 | 45 | 40 | 40 | 35 |
| Die height | mm | 350 | 400 | 450 | 500 | 500 | 530 |
| Slide adjustment | mm | 90 | 100 | 110 | 120 | 120 | 120 |
| Depth of Throat | mm | 350 | 390 | 430 | 450 | 450 | 490 |
| Distance betweenuprights | mm | 660 | 720 | 900 | 980 | 980 | 1050 |
| Slide area | mm | 620ｘ520 | 700ｘ580 | 880ｘ650 | 950ｘ700 | 950ｘ700 | 1000ｘ750 |
| Shank hole | mm | ∅70ｘ80 | ∅70ｘ90 | ∅70ｘ90 | ∅70ｘ100 | ∅70ｘ100 | ∅70ｘ100 |
| Bolster area | mm | 1070ｘ680 | 1170ｘ760 | 1390ｘ840 | 1500ｘ880 | 1540ｘ880 | 1700ｘ940 |
| Size opening in the table | mm | 180 | 200 | 200 | 200 | 200 | 200 |
| Distance from worktable to ground | mm | 900 | 900 | 1000 | 1000 | 1000 | 1020 |
| Main motor | kw.p | 11ｘ4 | 15ｘ4 | 15ｘ4 | 22ｘ4 | 30ｘ4 | 37ｘ4 |
| Slide adjust device | HP | electrial driving | |||||
| Air pressure | kg/cm² | 6 | |||||
| Presses precision | GB/JIS 1 class | ||||||
| Presses dimension | mm | 2020ｘ1315ｘ2985 | 2325ｘ1450ｘ3250 | 2580ｘ1690ｘ3810 | 2820ｘ1710ｘ3900 | 2880ｘ1750ｘ3920 | 3150ｘ1940ｘ4320 |
| Die cushion capacity | Ton | 8.5 | 8.5 | 11.5 | 15 | 15 | 15 |
| Stroke | mm | 70 | 80 | 80 | 90 | 90 | 90 |
| Die cushion effective area | mm² | 500ｘ350 | 650ｘ420 | 710ｘ480 | 710ｘ480 | 710ｘ480 | |
The JH21 Type High Performance Press Machine by Lihao Machine sets the benchmark for precision and durability in industrial stamping. Designed with high rigidity, this high accuracy JH21 stamping press ensures consistent performance even under heavy-duty operations. Its body, crafted from welded steel plates and stress-relieved, guarantees long-lasting stability and exceptional resistance to deformation.
Featuring a compact structure JH21 stamping press design, the crankshaft is longitudinally arranged for space efficiency, while the hexagonal guide rails provide high precision guidance during every stroke. The combined-type pneumatic friction clutch-brake enables steady engagement with minimal noise, enhancing operational comfort and productivity.
Safety and protection are key priorities: the JH-21 comes with a hydraulic overload protection device (or rigid protection for JF21) to prevent machine damage due to overload. Meanwhile, the PLC-controlled electric circuit, along with a safety duplex valve for air pipelines, ensures flexible, responsive, and reliable operations. Operators can choose from single-time, inching, or continuous working modes, all conforming to international safety standards for stamping machines.
With the JH21 press, industries can achieve precise stamping, superior reliability, and enhanced production efficiency—making it an ideal choice for modern manufacturing setups.
Key Features
Steel plates welded as machine body, treated for internal stress removal, providing high rigidity JH21 press
Longitudinal crankshaft for compact structure JH21 stamping press
Extra-long hexagonal guide rails for high accuracy JH21 stamping press
Combined-type pneumatic friction clutch-brake for smooth and quiet operation
Hydraulic overload protection for JH21 / rigid protection for JF21 to prevent tool damage
PLC-controlled electric circuit with safety duplex valves for air pipelines
Flexible operational modes: single-time, inching, and continuous
Product Picture
FAQs
Q1: What makes the JH21 press highly accurate?
A1: The high accuracy JH21 stamping press features extra-long hexagonal guide rails and precision crankshaft alignment, ensuring precise movement and consistent stamping results every time.
Q2: How rigid is the JH21 Type Press Machine?
A2: With a welded steel body and internal stress relief treatment, the high rigidity JH21 press maintains structural stability and reduces vibration, even during heavy-duty stamping.
Q3: Is the JH21 press suitable for limited workshop space?
A3: Absolutely. The compact structure JH21 stamping press is designed with a longitudinal crankshaft, maximizing operational efficiency while minimizing floor space usage.
Q4: What safety features does the JH-21 include?
A4: The JH-21 is equipped with hydraulic overload protection, a PLC-controlled electric circuit, and a duplex air valve, allowing safe and reliable single, inching, or continuous operations.
Q5: Who manufactures the JH21 stamping press?
A5: The JH21 press is manufactured by Lihao Machine, a trusted brand in precision stamping solutions known for durability and performance.
