Airtac MIC Cushioned Mini Cylinder MIC40X250SU
The AirTAC Airtac MIC Cushioned Mini Cylinder MIC40X250SU is a genuine double acting + cushion round-body mini air cylinder with a Ø40mm bore and 250mm stroke, 1/4" air ports and a stainless-steel barrel and rod for mildly corrosive environments.
- BoreØ40 mm
- Stroke250 mm
- Port size1/4"
- Acting typeDouble acting + cushion
- Rod threadM12×1.25
- CushionVariable air cushion, both ends
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac MIC Cushioned Mini Cylinder MIC40X250SU
Delivering 879.6 N of push force at 0.7 MPa, the AirTAC MIC40X250SU is a robust double-acting round-body mini cylinder built for demanding tasks. The stainless-steel barrel and Ø16 mm rod resist mild corrosion and washdown environments. A 1/4" port feeds the bore, while the U rear cover provides a 90-degree mounting orientation for tight machinery layouts.
Twin adjustable air cushions let you needle-set the end-of-stroke deceleration, absorbing shock at high cycling speeds. This protects your payload and cuts workshop noise. The built-in -S magnet supports CMSG, DMSG and EMSG switches for position sensing. Based on the 628.3 N push force at 0.5 MPa, it handles a safe working load of roughly 377 N, lifting about 32 kg vertically with a 2:1 safety margin.
Airtac MIC Cushioned Mini Cylinder MIC40X250SU Technical Specifications
| Model | Airtac MIC Cushioned Mini Cylinder MIC40X250SU |
|---|---|
| Series | MIC mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 250 mm |
| Acting type | Double acting + cushion |
| Port size | 1/4" |
| Rod thread | M12×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Variable air cushion, both ends |
| Max standard stroke | Up to 500 mm |
Specifications follow the official AirTAC MI/MIC (ISO 6432) datasheet. Barrel & rod: stainless steel (round-body, riveted construction). Thread options: PT (blank) / G. Note: the Ø40 bore is a larger, non-ISO-6432 size.
Theoretical Output Force (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | 739 N |
| Max (@1.0 MPa) | 128 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac MIC Cushioned Mini Cylinder MIC40X250SU
| MIC | round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×250 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSG / DMSG / EMSG sensors. |
MI-family variants: MI / MIC (double acting ±cushion), MSI / MTI (single acting push / pull), MID / MICD (double rod ±cushion), MIJ / MICJ (adjustable stroke ±cushion). Back covers CA / U / R / CM. Mounting LB / FA / SDB / TC.
Where the Airtac MIC Cushioned Mini Cylinder MIC40X250SU Is Used
Heavy Carton Diversion
Pushes heavy packaged goods across sorting belts using its 628.3 N push force, while the adjustable cushion prevents harsh slams at 250 mm stroke end.
Press Ejection
Ejects dense metal or plastic parts from a press bed rapidly, relying on the needle-set air cushions to absorb the shock of sudden stops.
Vertical Pallet Lifts
Lifts approximately 32 kg of materials vertically in packaging lines, using the stainless construction to endure periodic washdowns.
Is the Airtac MIC Cushioned Mini Cylinder MIC40X250SU the Right Cylinder?
This Ø40 bore hits a sweet spot for heavier mechanisms, pushing 628.3 N at 0.5 MPa. If your load is lighter, stepping down to the MIC32 bore provides 402.2 N of push force; since 40 mm is the largest available MIC bore, there is no larger cushioned option. Dial in the needle valves when operating at high speeds or moving heavy masses to prevent end-cap banging.
The adjustable cushion only decelerates the piston near the stroke end; it will not hold a load if air pressure drops. For vertical or suspended loads that must resist drifting on air loss, fit an external rod lock or pilot-operated check valve. The -S magnet enables sensor tracking, and you can mount the unit via LB foot, FA flange, SDB pivot, TC trunnion or the included U back cover.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G)
- ✓ Magnet (-S) for sensors?
- ✓ Back cover (CA/U/R/CM) & mount (LB/FA/SDB/TC)
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Do not dismantle the riveted front/back covers.
- check Use correct back cover (CA/U/R/CM) & mount (LB/FA/SDB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac MIC Cushioned Mini Cylinder MIC40X250SU FAQ
This double-acting cylinder uses a 1/4" port and a Ø16 mm piston rod with an M12x1.25 male thread. It pushes 628.3 N and pulls 527.8 N at 0.5 MPa. At 0.7 MPa, push is 879.6 N and pull is 738.9 N. The theoretical maximum force is 128.1 kgf at 1.0 MPa.
The -S suffix means it has a built-in magnet for CMSG, DMSG or EMSG switches. The adjustable air cushions only decelerate the piston near stroke end and do not act as a brake; the piston will drift on air loss. Use an external rod lock or pilot check valve to hold suspended loads.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac MIC Cushioned Mini Cylinder MIC40X250SU
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