Upgrading Air-Over-Oil Cylinders with the Hybrid Electro-Hydraulic Actuator

Air-Over-Oil Cylinders Application Examples

• Assembly presses
• Metal forming – Various processes:
  • Bending
  • Staking
  • Punching and Piercing
  • Coining
  • Swaging
• Composite forming presses
• And many others…

Disadvantages with Air-Over-Oil Technology

Air-Over-Oil cylinders incorporate a fast extend stroke, slow load stroke, and fast retract stroke however, there are a number of disadvantages with Air-Over-Oil technology including:

• High Energy Consumption: Require inefficient compressed air resulting in high energy consumption
• Control Unreliable: Control of position and applied force is difficult and not precise
• Higher Maintenance and Downtime: Require significant maintenance with unscheduled downtime
• Performance is Inconsistent: Leaky seals result in drifting and not holding position
• Not Programable: Does not allow programmable acceleration/deceleration profiles that can avoid damaging material and tooling

Hybrid SHA Advantages Over Air-Over-Oil  Cylinders:

• All Electric: eliminates pneumatic and hydraulic connections.
• All-In-One Solution: high-speed and high-force actuator in an integrated package.
• Energy Savings: only uses power on demand – eliminates the requirement for compressed air.
• Precision: precise control of position force, accel/decel and speed – provides quality cycle pass/fail data and reduces tool wear.
• Programmable: fully programmable extend stroke, load stroke and retract stroke, reduces cycle time.
• Minimal maintenance: totally-sealed system eliminates leaks and contamination.

Kyntronics Hybrid SHA actuators are a reliable replacement for air-over-oil cylinders, offering sealed, electric-powered force with precise motion control.

Hybrid Electro-Hydraulic Actuator