Pneumatics, Hydraulics

Part Number	Description / PDF	Quantity
81735511 Crouzet	CONTROL VALVE 3/2 NC ROD MOUNT	4
81519632 Crouzet	SOLENOID VALVE 3/2 NC SUBBASE MT	20
81513502 Crouzet	SWITCH PRESSURE OPERATED DIN RL	41
81281509 Crouzet	POSITION DETECTOR 3/2 NC ROD MNT	0
81550001 Crouzet	SEQUENCER SUB-BASE MOUNT	58
81507540 Crouzet	IMPULSE GENERATOR SUB-BASE MOUNT	8
81280028 Crouzet	MICROVALVE	0
81503731 Crouzet	TIMER POSITIVE OUTPUT SUBBASE MT	0
81731512 Crouzet	PNEUM VALVE DUAL RND PSHBTN NC	0
81519347 Crouzet	SOLENOID VALVE 3/2 NC SUBBASE MT	0
81505111 Crouzet	VACUUM SWITCH POS OUT SUBBASE MT	0
81507543 Crouzet	IMPULSE GENERATOR SUB-BASE MOUNT	0
81505437 Crouzet	POS DET REL NEG OUT SUBBASE MNT	0
81513234 Crouzet	CONTROL VALVE 4/2 SUBBASE MNT	0
81545012 Crouzet	VAC GEN PRES OPERATED FREE HANG	0
81503729 Crouzet	TIMER POSITIVE OUTPUT SUBBASE MT	0
89543201 Crouzet	CONTROL VALVE 3/2 NO PANEL MOUNT	0
81922521 Crouzet	POSITION DETECT 3/2 NC CHAS MNT	0
81513103 Crouzet	SOLENOID VALVE ASSY 3/2 NC DIN	0
81503728 Crouzet	TIMER POSITIVE OUTPUT SUBBASE MT	0

Pneumatics, Hydraulics

1. Overview

Pneumatics and hydraulics are core technologies in industrial automation, utilizing compressed air (pneumatics) and pressurized fluids (hydraulics) to generate, control, and transmit power. Pneumatics excels in high-speed, clean operations, while hydraulics delivers high force and precision for heavy-duty tasks. Both systems are critical in manufacturing, aerospace, automotive, and energy sectors due to their reliability, scalability, and adaptability to harsh environments.

2. Main Types and Functional Classification

Type	Functional Features	Application Examples
Pneumatic Actuators	Convert compressed air into linear/rotary motion; low maintenance, fast response	Assembly line robots, packaging machines
Hydraulic Cylinders	Generate high force with precise control; suitable for heavy loads	Excavators, presses, aircraft landing gear
Directional Control Valves	Regulate fluid/air flow direction; enable system automation	CNC machines, injection molding
Compressors/Pumps	Provide pressurized air/fluid; define system capacity	Power plants, construction equipment
Vacuum Generators	Create suction for material handling; non-contact operation	Food processing, semiconductor manufacturing

3. Structure and Components

A typical pneumatic system includes an air compressor, filters/regulators/lubricators (FRL units), directional control valves, actuators, and tubing. Hydraulic systems consist of a fluid reservoir, hydraulic pump, pressure valves, actuators (cylinders/motors), and hoses. Both systems integrate sensors and programmable logic controllers (PLCs) for automated control, with pneumatic systems emphasizing airflow management and hydraulic systems focusing on fluid pressure stability.

4. Key Technical Specifications

Parameter	Description	Importance
Operating Pressure	100-1,000 kPa (pneumatic), 7-35 MPa (hydraulic)	Determines force output and safety margins
Flow Rate	10-5,000 L/min	Impacts actuator speed and system efficiency
Power Density	Hydraulic: >10 kW/kg; Pneumatic: ~1 kW/kg	Defines compactness for space-constrained applications
Response Time	5-100 ms	Dictates system performance in dynamic processes
Reliability Index	MTBF >10,000 hours	Affects maintenance intervals and downtime

5. Application Fields

Automotive: Robotic welding arms, paint-spraying systems
Food & Beverage: Sanitary vacuum grippers, conveyor belt control
Aerospace: Flight control surfaces, landing gear actuation
Construction: Excavator boom systems, hydraulic breakers
Energy: Wind turbine pitch control, offshore drilling equipment

6. Leading Manufacturers and Products

Manufacturer	Representative Product	Technical Highlights
Festo	DSNU Compact Cylinder	Integrated position sensing, IP65 rating
SMC Corporation	SY5000 Series Solenoid Valve	3/2-way, 24V DC control with energy recovery
Bosch Rexroth	A10VO Axial Piston Pump	Variable displacement, 280 bar max pressure
Parker Hannifin	CP10-12-210 Hydraulic Cylinder	Corrosion-resistant coating for marine environments
Hydac	DFH Filter System	Multistage filtration for ISO 4406 V4 cleanliness

7. Selection Recommendations

Key considerations include load requirements (force/speed), environmental conditions (temperature/corrosion), energy efficiency targets, and maintenance accessibility. For example, a automotive plant selecting pneumatic grippers for robotic arms prioritized 0.1mm positional accuracy and 2Hz cycle speed, while a steel mill requiring hydraulic presses chose systems with 32MPa pressure rating and 95% volumetric efficiency. Always verify compliance with ISO 8573-1 (air quality) and NFPA T3.20.9 (hydraulic safety) standards.

8. Industry Trends

Key trends include: (1) Integration of IoT-enabled smart actuators with condition monitoring; (2) Development of water-hydraulics for environmentally sensitive applications; (3) Adoption of digital twins for system simulation; (4) Growth of electro-hydraulic hybrid systems for energy recovery; (5) Miniaturization of pneumatic components for collaborative robots (cobots). The market is projected to grow at 6.2% CAGR through 2030, driven by Industry 4.0 automation demands.