SOFAB Comparison Between
Pneumatic Drive System and Hydraulic Drive
System
| Specifications |
Advantages
of the Pneumatic System |
Disadvantages
of the Hydraulic System |
| Drive System |
3,000,000
operation cycles before overhauling.
|
50,000 to
100,000 cycles before overhauling. |
| Spare part
Replacement Cost |
Pneumatic
System Compressor Replacement Cost,
About 1500 USD from SOFAB. |
Hydraulic
System Replacement Cost, About 12,000
USD from the Manufacturer. |
| Pipe Replacement |
Pneumatic
pipe cost per meter 10 USD |
Hydraulic
pipe cost per meter 300 USD |
| Pneumatic
Vs Hydraulic Systems, If they have Equal
size Reservoir Tanks, what Production
cycles can we expect from each drive
system in case of electrical power loss. |
In a power
loss situation, the Pneumatic System
will provide the customer with the10
times more cycles than that of the hydraulic
system from its residual air supply
bank. |
In a power
loss situation, the Hydraulic System
will provide the customer with one to
3 cycle operations. This is because
of the limited size of Hydraulic reservoir
or accumulator. |
| Engagement
Performance |
99.99% Expected
Continuous Operational Productivity
Performance. |
Approximately
80% Expected Operational Productivity
Performance. |
| Approximate
Cycles per day |
5000 operational
cycle per day. Pneumatic Air does not
require any cooling. |
Maximum
of 50 cycles per day or the system may
overheat, because Hydraulic Oil requires
cooling, while air does not require
any cooling. |
| Warranty |
1 Year Warranty,
extendable to 20 years. |
1 Year Warranty |
| Repair Time |
Sofab Replacement
of Pneumatic Drives, Valves, Switches
and Pistons, can be accomplished in
a maximum of 30 min. |
Sofab Replacement
of Hydraulic Drives, Valves, Switches
and Pistons, can be accomplished within
of 4 hours to 8 hrs. |
| Max Temp |
Operating
Temp Range, – 30c to +80c |
Operating
Temp Range, -5 + 50 C |
| Open and
Close Switches & Control Panel |
Every unit
comes with a control panel and its associated
switches and drive mechanism. Electrical
Switch can open or close System from
100 meters distance or from any distance
you wish if you use RS232 or RS485. |
Every unit
comes with a control panel and its associated
switches and drive mechanism. Electrical
Switch can open or close System from
100 meters distance or from any distance
you wish if you use RS232 or RS485. |
| Environmental |
The EPA
has issued a memorandum of understanding
on limiting underground hydraulic unit
installations. Thus Sofab has introduced
the all-new Pneumatic Drive System. |
Not Recommended
by the EPA because of likely Hydraulic
leaks. |
| Optional
Standby Power |
In case
of Power loss, available is an automatic
Auto-Start System switching panel with
a Detroit Diesel or Perkins Generator
System. |
In case
of Power loss, available is an automatic
Auto-Start System switching panel with
a Detroit Diesel or Perkins Generator
System. |
| Reliability |
Sofab uses
Pneumatic Standard Equipments, which
is safer, more reliable. |
Good reliability
but not limited to the supply of special
hydraulic systems from the manufacturer. |
| Access Control |
System is
designed to accept any PC or Access
control system via the electromechanical
system. |
Yes Capable
through PLC (Program Logic Control) |
| AC Power |
System power
Single-Phase 220V, 50/60Hz, 2 Phase
or 380V, 50/60Hz. |
System power
380V, 50/60Hz, 3Phase. |
| Drive System
Manufacturing Specifications |
Each Drive
System unit is manufactured per the
customer specification. 100% designed,
tested and manufactured by SOFAB. |
Each unit
is manufactured per the customer specification
by RE Italy. |
| Custom Design |
Unlimited
Design. |
Limited
Design. |
| Certification |
ISO 9001:
2000 certificated manufacturing facility. |
ISO 9001:
2000 certificated manufacturing facility. |
| Installation
Area Dimensions |
Pneumatic
System Installation Area is similar
in Size as the Hydraulic System but
for a given set area, Pneumatic system
will give more operational cycles then
that of the Hydraulic System. |
| Vandal Resistance |
Not accessible.
The Compressor and Air Tank and other
controlling devices are remotely positioned
for safety and security, they can be
placed as far as 100 meters away. |
The Hydraulic
Pump and Reservoir must be placed within
a maximum of 5 meters from the door
location. |
