AH-Series

4 Ton to 50 Ton Hydropneumatic Presses

An alternative solution to conventional hydraulics presses by providing a cleaner, quieter, and more cost effective solution to a wide variety of pressing and forming applications.

The AH-Series Hydropneumatic Press provides a rapid low force approach stroke with a self-contained hydraulic intensified power stroke, all in one complete package. These air-over-oil presses make cost-effective alternatives to full hydraulic presses within the same force range.

AH-Series Hydropneumatic Press Animation

Hydropneumatic Press Operation:

1   Actuating valve 1 pressurizes port 1, causing the float piston to move, transferring oil from the oil chamber onto the work piston at air pressure. The work rod extends at low pressure.

2   When the work is met, valve 2 is actuated, pressurizing port 2. This causes the booster piston and rod to extend, intensifying the pressure on the work piston, creating a high force.

3 – 3A   Upon completion of the work, both valves are reversed, pressurizing ports 3 and 3A, retracting the cylinder to it’s start position

Individual hydropneumatic cylinders can be purchased separately. See our AH-Series Intensifying Cylinder for more information.

Hilo Press Animation
Animation Key

AH-Series Press Information & Options

Standard Press Features

  • No Hydraulic Power Unit or Electric Motor Needed
    Pneumatic Operation with Optional Electric Controls
  • 6.0” Overall Stroke Cylinder with .500”
    Hydraulic Intensified Power Stroke
  • High Pressure Port for Sensing
  • Heavy Duty C-Frame Construction
  • Removable Press Platen
  • Heavy Duty Designed Tie Rod Cylinder
  • Total Air/Oil Separation

Standard Add-ons

  • Matching Floor Stands
  • Two-Hand Non-Tie Down Control Packages
  • Pressure / Dwell / Distance Return Options
  • Jog Control Circuit
  • Fault Circuit Control Package (E-FI)
  • Increased Stroke Lengths
  • Press Frame Modifications
  • Anti-Rotation Ram Guide
  • Cylinders sold separately
  • Additional information on Control Packages

AH Series Hydropneumatic Press Model Comparison

Description AH4L-CF AH9L-CF AH15L-CF AH20L-CF AH30L-CF AH50L-CF
Force at 100 psi 8,754 lb. 18,200 lb. 31,408 lb. 38,671 lb. 65,134 lb. 105,546 lb.
Standard Daylight/ Throat Depth 14.88″ / 6.25″ 14.50″ / 6.25″ 14.50″ / 8.25″ 14.50″ / 8.25″ 14.50″ / 8.25″ Consult Factory
Approach Force (lbs.) @ 100 psi 829 1177 1963 1963 2827 5026
Return Force (lbs.) @ 100 psi 681 942 1649 1649 2337 4320
Overall Stroke 6.0″ / 8.0″ 6.0″ / 8.0″ 6.0″ / 8.0″ 6.0″ / 8.0″ 6.0″ / 8.0″ 6.0″ / 8.0″
Power Stroke .500″ .500″ .500″ .500″ .500″ .500″
Maximum Operating Speed 1.5 Ft/sec. 1.5 Ft/sec. 1.5 Ft/sec. 1.5 Ft/sec. 1.5 Ft/sec. 1.5 Ft/sec.
Air Consumption Per Cycle .426 SCFM 1.079 SCFM 1.356 SCFM 1.568 SCFM 2.510 SCFM 4.204 SCFM
Port (NPT) .375″ .500″ .500″ .500″ .750″ .750″

AH-Series Press Custom Modifications

  • Light Curtains & Guarding Packages
  • PLC Control Options
  • 4-Post and 2-Post Designs
  • Load Cell & Distance Monitoring Packages
  • Selectable Modes of Operation
  • Control Systems Designed for Future Expansion
  • Custom Tooling and Fixture Packages
  • Emergency Stop Control Circuit
  • 24vDC Control Circuit
  • Linear Position Transducer
  • Custom Control Packages
  • And more

What custom modifications are best for your press equipment?

This free guide goes through key equipment modifications and which ones are best when you’re looking for optimal performance, efficiency and productivity for your operation.

Guide Thumb Custom Press Modifications

AH-Series Hydropneumatic Press Photos

AH-15 Press with linear position transducer, compression load cell, and custom machined platen

AH-9 Press with EDP-1 DR (Distance Return Control Package) and press alignment coupler set.

AH-15 press with partial 24Vdc Control Package

AH-50 Press with EDP-1 Controls and Side Guarding

AH-15 4-Post Press

AH-15 Press with JOG Controls

AH-20 Ton 4-Post Press

AH-20 Press with Piggyback Cylinders

AH-Series CAD Drawings

PDF CAD Drawings

4 Ton AH4L-CF (79 KB)

9 Ton AH9L-CF (80 KB)

15 Ton AH-15L-CF (81 KB)

20 Ton AH-20L-CF (83 KB)

30 Ton AH-30L-CF (85 KB)

2-D CAD Drawings

4 Ton AH4L-CF | 2D (368 KB)

9 Ton AH9L-CF | 2D (379 KB)

15 Ton AH-15L-CF | 2D (378 KB)

20 Ton AH-20L-CF | 2D (361 KB)

30 Ton AH-30L-CF | 2D (354 KB)

3-D CAD Drawings

4 Ton AH4L-CF | 3D (8 MB)

9 Ton AH9L-CF | 3D (9 MB)

15 Ton AH-15L-CF | 3D (9 MB)

20 Ton AH-20L-CF | 3D (9 MB)

30 Ton AH-30L-CF | 3D (9 MB)

Interested in our AH-Series Hydropneumatic Press units?