Hydropneumatic presses

The EMG hydropneumatic presses are machine tools that develop significant power and high precision. A real technological tool, they are efficient and economical. Particularly adapted to riveting and bending of metals, their power can reach 100 tons. 

 

The hydropneumatic presses work only with a compressed air cylinder in a closed circuit. Economical and silent, our presses require little or no maintenance. They allow, compared to a manual press, to gain in speed, power and quality of execution.

 

Customer satisfaction with our services is the most important criterion of our success. Quality is our priority. For us it is the result of an impeccable process and our goal is to design it to perfection while respecting 5 essential commitments:
- Working according to the rules of art
- Resistance
- Delivery time
- Value for money
- Listen and understand customer needs

Quote request
7T hydropneumatic oleo-pneumatic press
Bâti gamme 7 T
Power*6 910 » 7 820 kg
Total stroke*50 » 400 mm
Power stroke*6 » 40 mm
Swan-neck depth185 mm
Clear height400 mm
Weight500 kg
13T hydropneumatic oleo-pneumatic press
Bâti gamme 13 T
Power*13 380 » 14 000 kg
Total stroke*50 » 300 mm
Power stroke*6 » 40 mm
Swan-neck depth220 mm
Clear height430 mm
Weight750 kg
30T hydropneumatic oleo-pneumatic press
BÂTI GAMME 30 T
Power*28 300 » 30 650 kg
Total stroke*50 » 400 mm
Power stroke*6 » 40 mm
Swan-neck depth250 mm
Clear height500 mm
Weight1 200 kg
50T hydropneumatic oleo-pneumatic press
Bâti gamme 50 T
Power*45 900 » 47 600 kg
Total stroke*70 » 400 mm
Power stroke*6 » 40 mm
Swan-neck depth270 mm
Clear height580 mm
Weight2 200 kg
Hydropneumatic press 75T oleo-pneumatic press
BÂTI GAMME 75 T
Power*72 700 kg
Total stroke*100 » 300 mm
Power stroke*10 » 16 mm
Swan-neck depth270 mm
Clear height670 mm
Weight4 500 kg
100T hydropneumatic oleo-pneumatic press
BÂTI GAMME 100 T
Power*98 500 kg
Total stroke*100 » 300 mm
Power stroke*8 » 12 mm
Swan-neck depth270 mm
Clear height710 mm
Weight5 500 kg

Special executions

Special executions pneumatic presses

MAIN FEATURES

CHARACTERISTICS OF AN EMG HYDROPNEUMATIC PRESS:

Only pressed air type available.

Our cylinder is a compressed air cylinder with closed hydraulic circuits, which allows attaining the requested loads with a stroke which is triggered when the piston gets a resistance. The action is very simple and similar to pneumatic double effect cylinders. This technology thus combines the advantages of both pneumatic and hydraulic systems, without any adverse effects (these include for example, no noisy, dirty hydraulic motors, and low air consumption).

 

  • Rapidity
  • Power
  • Quality
  • Economy
  • Quiet
  • No maintenance

 


 Our range of presses has : 

  • 6 different standard frames and 60 cylinders allowing an unlimited number of combinations.
  • a power from 7 to 100 tons.
  • a total stroke from 50 to 300 mm.
  • a working stroke from 6 to 60 mm.

 

Our commitment

Quality is our priority. For us, it is the result of a flawless process. Our goal is to perfectly design the hydropneumatic press corresponding to your needs by respecting 5 essential commitments
- a work in the rules of the art
- an important resistance in the long run
- fast delivery times
- a very good quality/price ratio
- a total listening and understanding of your expectations.

 

 

Explanatory Diagram of Operation

 

Step 1

 

The fast approach run without power
 

 

The cylinder is supplied with compressed air at the marks (1) and (2). The rapid but rapid yet controlled descent of the feed piston (3) and the slider (4) takes place until resistance is reached. In this step, the oil fills the hydraulic chamber (5).

Step 2

 

The slow working stroke with power

 

A control valve switches the pneumatic supply to the mark (6), the working piston (7) descends. During this phase, the plunger rod of the working piston (7) enters in the hydraulic chamber (5), compresses the oil, which greatly increases the power of the slider (4).

Etape 3

 

The return stroke and the stand-by position

 

The cylinder is supplied with compressed air on the marks (8) and (9). The slider (4), the feed piston (3) and the working piston (7) rise at high speed and remain held in the high position.

 

APPLICATIONS

The hydropneumatic presses develop a high power and a great precision of execution, particularly at the end of the stroke.  They are therefore perfectly adapted to riveting and bending. Indeed, these two applications require an adapted lowering speed management with a higher effort at the end of the stroke for both riveting and bending.