Pneumohydraulic Drive (with Separate Working Cylinder), AT Series
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- Operating pressure ≤6bar
- Pressing force 2-2000kN
- Force stroke 5-52mm
- Total stroke 100/200/250mm
The pneumohydraulic drive combines the advantages of compressed air and hydraulic systems, integrating the high-speed motion of the separate pneumatic cylinder with the high intensity of hydraulic systems. It enables pneumatic rapid advance, pneumatic rapid return, and utilizes the intensifier to provide high-pressure oil to achieve work. The control logic is consistent with standard pneumohydraulic cylinders.
Operating Parameters
| Model | Pressing Force Output (kN, at 400 bar input oil pressure ) | Approach Stroke Force (kg, at 6 bar air pressure) | Return Stroke Force (kg, at 6 bar air pressure) | Oil Consumption per 1mm Stroke (V, CC) | Approach Stroke Oil Loss (V1, cCC, per 50mm) | Hose Expansion/Loss (V2, CC, per 100mm of hose length) | Hydraulic Hose Specification |
| | 13.00 | 95.00 | 105.00 | 0.31 | 0.55 | 0.40 | 3/8" Two-Layer Wire Spiral High-Pressure Hose |
| | 21.00 | 150.00 | 170.00 | 0.49 | 0.70 | 0.70 | 3/8" Two-Layer Wire Spiral High-Pressure Hose |
| | 42.00 | 240.00 | 260.00 | 1.02 | 1.65 | 0.70 | 1/2" Four-Layer Wire Spiral High-Pressure Hose |
| | 81.00 | 350.00 | 370.00 | 1.95 | 3.50 | 0.90 | 1/2" Four-Layer Wire Spiral High-Pressure Hose |
| | 158.00 | 500.00 | 700.00 | 3.85 | 5.00 | 2.00 | 1/2" Four-Layer Wire Spiral High-Pressure Hose |
| | 200.00 | 580.00 | 780.00 | 5.67 | 10.00 | 2.00 | 3/4" Four-Layer Wire Spiral High-Pressure Hose |
| | 320.00 | 730.00 | 1000.00 | 7.85 | 15.50 | 2.00 | 3/4" Four-Layer Wire Spiral High-Pressure Hose |
| | 498.00 | 1150.00 | 1700.00 | 12.27 | 18.50 | 3.10 | 1" Four-Layer Wire Spiral High-Pressure Hose |
| | 1030.00 | 2355.00 | 3780.00 | 25.45 | 36.50 | 3.10 | 1" Four-Layer Wire Spiral High-Pressure Hose |
Cylinder Stroke Parameters
| Model | A1 | B | C | D | E | F (f7) | G | H | K | L | M | N | X |
| | 66 | 320 | 6-M6×12 | 40 | G1/8 | 30 | 10 | 16 | 24 | M12×1.5 | 15 | 13 | G3/8 |
| | 78 | 339 | 6-M08×15 | 54 | G1/4 | 40 | 10 | 20 | 26 | M16×1.5 | 15 | 17 | G1/2 |
| | 98 | 355 | 6-M08×18 | 64 | G3/8 | 50 | 10 | 30 | 29 | M22×2 | 20 | 24 | G1/2 |
| | 120 | 391 | 6-M10×20 | 88 | G1/2 | 70 | 10 | 45 | 35 | M30×2 | 25 | 36 | G3/4 |
| | 145 | 413 | 6-M16×25 | 100 | G1/2 | 75 | 15 | 50 | 36 | M30×2 | 25 | 41 | G3/4 |
| | 166 | 427 | 6-M20×30 | 115 | G1/2 | 85 | 18 | 56 | 52 | M39×2 | 35 | 46 | G3/4 |
| | 190 | 446 | 6-M20×30 | 132 | G3/4 | 100 | 18 | 63 | 47 | M39×2 | 35 | 55 | G1 |
| | 190 | 471 | 8-M20×35 | 150 | G3/4 | 115 | 25 | 63 | 56 | M42×2 | 40 | 55 | G1-1/4 |
| | 315 | 556 | 12-M24×45 | 200 | G1 | 150 | 20 | 100 | 60 | M64×2 | 60 | 85 | G1-1/4 |
Configuration Diagram
- AT Cylinder (Multiple Units) MPSxxx-xxx Intensifier
- AT Cylinder (Multiple Units) TMPSxxx-xxx Intensifier
Cylinder Selection Example
- Requirement: 2 cylinders with 60kN force, 130mm stroke, 12mm pressure stroke, side-exit oil port, synchronous action, oil pipe length 1200mm, with an intensifier option.
- The AT08 cylinder outputs 81 kN at a maximum oil pressure of 400 bar, which meets the 60kN requirement. The corresponding intensifier must be the MPS series, which converts 6 bar air pressure into a maximum 400 bar hydraulic output.
- A1 (Cylinder Stroke): Since the required stroke is 130mm, a standard 150mm stroke is selected.
Total volume for 2 cylinders = 2×150 ×1.96CC (V)×1.5 (Safety storage coefficient) = 882CC - A2 (Volume Loss Due to Hose Length) = (1200/50)×3.5CC (V1) = 84CC
- A0 (Total Required Low-Pressure Oil): 882CC 84CC = 966CC.
- B1 (Cylinder Consumption): Volume for 2 cylinders = 2×12×1.96CC (V) = 47.04 CC.
- B2 (Volume Loss Due to High-Pressure Hose Expansion) = 2×(1200/100)×0.9 CC (V2) = 21.6 CC.
- B0 (Total Required High-Pressure Oil): 47.04 CC 21.6 CC = 68.64 CC.
- Final Selection Result
Working Cylinders: AT08-150-02 (Quantity: 2 units)
Drive Intensifier: MPS160.60.100 (Quantity: 1 unit)
High-Pressure Hoses: VH04-1200 (Quantity: 2 units)
For automation projects with limited installation height, how compact is the overall solution?
For automation projects with limited installation height, how compact is the overall solution?
The solution eliminates the need for an external hydraulic system, offering reduced height and smaller space requirements, ideal for compact equipment layouts.
In mixed automation lines combining pneumatic and hydraulic elements, how compatible is the operation?
In mixed automation lines combining pneumatic and hydraulic elements, how compatible is the operation?
Based on compressed air, it is easy to integrate with existing pneumatic systems for seamless collaboration.