2. Integrated shock-absorbing pads on front/rear covers mitigate impact during direction changes;
3. Multiple rear cover configurations enhance installation flexibility;
4. Crimped and rolled structure ensures robust connection between stainless steel cylinder barrel and end covers;
5. Stainless steel piston rods and cylinders provide corrosion resistance for harsh operating environments;
6. Comprehensive range of specifications and mounting accessories available for customized solutions.
Category: Stainless Steel Mini Cylinders | Brand: AIRTAC | Series: MI25~40
AirTAC MI25~40 Series Stainless Steel Mini Cylinder MI40X30U Technical Specifications
- Model Range: MI25~40 (MI40X30U as specific variant)
 - Bore Size: 40mm
 - Stroke: 30mm (adjustable cushion range: 0-5mm)
 - Operating Pressure: 0.05-1.0 MPa
 - Medium Temperature: -20℃ to 150℃
 - Cushioning: Adjustable pneumatic cushion (dual side)
 - Mounting Style: Basic type with MF1/MF2 flange options
 - Port Size: M5x0.8 (G1/8 adaptor available)
 - Material:
            
- Cylinder Tube: SUS304 stainless steel
 - Piston Rod: SUS420 hardened stainless
 - Seals: NBR+PU hybrid (FDA compliant option)
 
 - Weight: 1.3kg (including standard accessories)
 - Dimensions:
            
- Extended Length: 168mm (stroke 30mm)
 - Retracted Length: 138mm
 - Body Diameter: Φ40±0.1mm
 - Mounting Hole Spacing: 25mm x 25mm
 
 - Protection Class: IP67 (wipers included)
 - Lubrication: Pre-lubricated (Grease-free operation possible)
 
Corrosion-resistant stainless steel cylinder with space-saving design (40% more compact than standard ISO cylinders). Features double O-ring piston seals for leak prevention and magnetic field-resistant construction. The chrome-plated piston rod incorporates a hardened layer (HRC 35-40) for scratch resistance.
- Cleanroom automation in semiconductor manufacturing
 - Food packaging machinery (salt/fat resistant design)
 - Chemical processing equipment
 - Medical sterilization device actuators
 - High-cycle robotic end effectors (500+ cycles/min)
 
| Property | Property Value | 
|---|---|
| sku | MI40X30U | 
| Rear Cover Type | Radial Air Inlet | 
| Mounting Type | Without Mounting Accessories | 
| Understood. Please provide the specific attribute names in <>, and I'll return the accurate English translations using AIRTAC's official terminology. Example: User input: <缸径> My output: Bore | Operating Temperature:-20-70°C Speed Range:30-800mm/s | 
| Port Size | PT1/4 | 
| Magnet | Non-magnetic | 
| Bore Diameter | <40mm> | 
| Stroke | 30mm | 
Returns will be accepted for up to 15 days of Customer’s receipt or tracking number on Not used items. You, as a Customer, are obliged to inform us via email before you return the item, only in the case of:
- Received the wrong item.
 - Item arrived not as expected (ie. damaged packaging).
 - Item had defects.
 - Over delivery time.
 - The shipper does not allow the goods to be inspected before payment.
 
The returned product(s) must be in the original packaging, safety wrapped, undamaged and unworn. This means that the item(s) must be safely packed in a carton box for protection during transport, possibly the same carton used to ship to you as a customer.
              










