AirTAC MI8 Mini Air Cylinder, 8 mm Bore
Every AirTAC MI8 configuration on one page: 93 stock order codes with strokes from 5 to 200 mm and 7 cover/mounting combinations, from $16.25. Pick a stroke, cover and mounting and version to see the exact order code and price.
This combination is not a stock order code. Request a quote and we will confirm availability and price.
- 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 MI8
The AirTAC MI8 is a double-acting stainless-steel mini cylinder with an 8 mm bore and a 4 mm piston rod. At 0.5 MPa it pushes 25 N and pulls 19 N; at 0.7 MPa that rises to 35 N push and 26 N pull. Force depends on bore and pressure only, so every stroke on this page gives the same output.
All MI8 versions share M5×0.8 air ports, an M4×0.7 rod thread and rubber bumpers at both ends. The cylinder runs on filtered air between 0.15 and 1.0 MPa (proof 1.5 MPa), from -20 to +70 °C, at 30 to 800 mm/s. This page lists 93 stock order codes with strokes from 5 to 200 mm; the catalog maximum stroke is 150 mm, and the longer codes are non-standard strokes we already supply.
MI8 Technical Specifications
| Bore size | Ø8 mm |
|---|---|
| Stock strokes | 5 – 200 mm |
| Catalog maximum stroke | 150 mm (longer on request) |
| Acting type | Double acting |
| Port size | M5×0.8 |
| Piston rod / rod thread | Ø4 mm / M4×0.7 |
| Fluid | Air (filtered by 40 µm 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 | Rubber bumper at both ends |
Source: AirTAC Products Catalog 2026A (PDF01-P0426), MI series ordering code and specifications.
Theoretical output force (Ø8 mm)
| Pressure | Push | Pull |
|---|---|---|
| 0.5 MPa | 25 N | 19 N |
| 0.7 MPa | 35 N | 26 N |
Push = pressure × bore area; pull subtracts the Ø4 mm rod area. Usable force is lower because of friction and back-pressure.
How the MI8 Order Code Is Built
| MI8 | Series and bore (8 mm) |
|---|---|
| X100 | Stroke in mm |
| S | Built-in magnet for position sensors (blank = none) |
| CA / CM / R / U | Back cover: CA clevis-end cover; CM round-end cover; R axial-port cover; U radial-port cover |
| FA / LB / SDB / TC | Mounting: FA front flange; LB foot bracket; SDB rear pivot bracket; TC center trunnion (blank = none) |
| G / T | Port thread: G = G (BSPP), T = NPT, blank = PT |
All AirTAC MI8 Order Codes (93)
Each order code links to its own datasheet page. Use Select to load it into the configurator above.
| Order code | Stroke (mm) | Back cover · Mounting | Magnet · Thread | Price | Select |
|---|---|---|---|---|---|
| MI8X5CA | 5 mm | CA clevis-end cover | - · PT | $16.25 | |
| MI8X5SCA | 5 mm | CA clevis-end cover | S · PT | $17.44 | |
| MI8X5U | 5 mm | U radial-port cover | - · PT | $16.25 | |
| MI8X5SU | 5 mm | U radial-port cover | S · PT | $17.44 | |
| MI8X10CA | 10 mm | CA clevis-end cover | - · PT | $16.25 | |
| MI8X10SCA | 10 mm | CA clevis-end cover | S · PT | $17.44 | |
| MI8X10SCALB | 10 mm | CA clevis-end cover + LB foot bracket | S · PT | $19.76 | |
| MI8X10U | 10 mm | U radial-port cover | - · PT | $16.25 | |
| MI8X10SU | 10 mm | U radial-port cover | S · PT | $17.44 | |
| MI8X15CA | 15 mm | CA clevis-end cover | - · PT | $16.25 | |
| MI8X15SCA | 15 mm | CA clevis-end cover | S · PT | $17.44 | |
| MI8X15U | 15 mm | U radial-port cover | - · PT | $16.25 | |
| MI8X15SU | 15 mm | U radial-port cover | S · PT | $17.44 | |
| MI8X20CA | 20 mm | CA clevis-end cover | - · PT | $16.25 | |
| MI8X20SCA | 20 mm | CA clevis-end cover | S · PT | $17.44 | |
| MI8X20U | 20 mm | U radial-port cover | - · PT | $16.25 | |
| MI8X20SU | 20 mm | U radial-port cover | S · PT | $17.44 | |
| MI8X20SUTC | 20 mm | U radial-port cover + TC center trunnion | S · PT | $23.95 | |
| MI8X25CA | 25 mm | CA clevis-end cover | - · PT | $16.25 | |
| MI8X25SCA | 25 mm | CA clevis-end cover | S · PT | $17.44 | |
| MI8X25SCATC | 25 mm | CA clevis-end cover + TC center trunnion | S · PT | $23.95 | |
| MI8X25U | 25 mm | U radial-port cover | - · PT | $16.25 | |
| MI8X25SU | 25 mm | U radial-port cover | S · PT | $17.44 | |
| MI8X25SUTC | 25 mm | U radial-port cover + TC center trunnion | S · PT | $23.95 | |
| MI8X30CA | 30 mm | CA clevis-end cover | - · PT | $16.71 | |
| MI8X30SCA | 30 mm | CA clevis-end cover | S · PT | $17.90 | |
| MI8X30CALB | 30 mm | CA clevis-end cover + LB foot bracket | - · PT | $19.04 | |
| MI8X30U | 30 mm | U radial-port cover | - · PT | $16.71 | |
| MI8X30SU | 30 mm | U radial-port cover | S · PT | $17.90 | |
| MI8X30SUFA | 30 mm | U radial-port cover + FA front flange | S · PT | $19.04 | |
| MI8X30SUTC | 30 mm | U radial-port cover + TC center trunnion | S · PT | $24.41 | |
| MI8X35CA | 35 mm | CA clevis-end cover | - · PT | $16.71 | |
| MI8X35SCA | 35 mm | CA clevis-end cover | S · PT | $17.90 | |
| MI8X35U | 35 mm | U radial-port cover | - · PT | $16.71 | |
| MI8X35SU | 35 mm | U radial-port cover | S · PT | $17.90 | |
| MI8X40CA | 40 mm | CA clevis-end cover | - · PT | $16.71 | |
| MI8X40SCA | 40 mm | CA clevis-end cover | S · PT | $17.90 | |
| MI8X40CALB | 40 mm | CA clevis-end cover + LB foot bracket | - · PT | $19.04 | |
| MI8X40U | 40 mm | U radial-port cover | - · PT | $16.71 | |
| MI8X40SU | 40 mm | U radial-port cover | S · PT | $17.90 | |
| MI8X45SCA | 45 mm | CA clevis-end cover | S · PT | $17.90 | |
| MI8X45SU | 45 mm | U radial-port cover | S · PT | $17.90 | |
| MI8X50CA | 50 mm | CA clevis-end cover | - · PT | $16.71 | |
| MI8X50SCA | 50 mm | CA clevis-end cover | S · PT | $17.90 | |
| MI8X50U | 50 mm | U radial-port cover | - · PT | $16.71 | |
| MI8X50SU | 50 mm | U radial-port cover | S · PT | $17.90 | |
| MI8X50ULB | 50 mm | U radial-port cover + LB foot bracket | - · PT | $19.04 | |
| MI8X55CA | 55 mm | CA clevis-end cover | - · PT | $17.44 | |
| MI8X55SCA | 55 mm | CA clevis-end cover | S · PT | $18.57 | |
| MI8X60CA | 60 mm | CA clevis-end cover | - · PT | $17.44 | |
| MI8X60SCA | 60 mm | CA clevis-end cover | S · PT | $18.57 | |
| MI8X60U | 60 mm | U radial-port cover | - · PT | $17.44 | |
| MI8X60SU | 60 mm | U radial-port cover | S · PT | $18.57 | |
| MI8X65CA | 65 mm | CA clevis-end cover | - · PT | $17.44 | |
| MI8X65SCA | 65 mm | CA clevis-end cover | S · PT | $18.57 | |
| MI8X70CA | 70 mm | CA clevis-end cover | - · PT | $17.44 | |
| MI8X75CA | 75 mm | CA clevis-end cover | - · PT | $17.44 | |
| MI8X75SCA | 75 mm | CA clevis-end cover | S · PT | $18.57 | |
| MI8X75CALB | 75 mm | CA clevis-end cover + LB foot bracket | - · PT | $19.76 | |
| MI8X75U | 75 mm | U radial-port cover | - · PT | $17.44 | |
| MI8X75SU | 75 mm | U radial-port cover | S · PT | $18.57 | |
| MI8X80CA | 80 mm | CA clevis-end cover | - · PT | $18.11 | |
| MI8X80SCA | 80 mm | CA clevis-end cover | S · PT | $19.30 | |
| MI8X80SCATC | 80 mm | CA clevis-end cover + TC center trunnion | S · PT | $25.81 | |
| MI8X80U | 80 mm | U radial-port cover | - · PT | $18.11 | |
| MI8X80SU | 80 mm | U radial-port cover | S · PT | $19.30 | |
| MI8X80SUTC | 80 mm | U radial-port cover + TC center trunnion | S · PT | $25.81 | |
| MI8X90CA | 90 mm | CA clevis-end cover | - · PT | $18.11 | |
| MI8X90SCA | 90 mm | CA clevis-end cover | S · PT | $19.30 | |
| MI8X90U | 90 mm | U radial-port cover | - · PT | $18.11 | |
| MI8X90SU | 90 mm | U radial-port cover | S · PT | $19.30 | |
| MI8X95SCA | 95 mm | CA clevis-end cover | S · PT | $19.30 | |
| MI8X95CALB | 95 mm | CA clevis-end cover + LB foot bracket | - · PT | $20.43 | |
| MI8X95SU | 95 mm | U radial-port cover | S · PT | $19.30 | |
| MI8X100CA | 100 mm | CA clevis-end cover | - · PT | $18.11 | |
| MI8X100SCA | 100 mm | CA clevis-end cover | S · PT | $19.30 | |
| MI8X100U | 100 mm | U radial-port cover | - · PT | $18.11 | |
| MI8X100SU | 100 mm | U radial-port cover | S · PT | $19.30 | |
| MI8X110SCA | 110 mm | CA clevis-end cover | S · PT | $19.97 | |
| MI8X120CA | 120 mm | CA clevis-end cover | - · PT | $18.83 | |
| MI8X120SCA | 120 mm | CA clevis-end cover | S · PT | $19.97 | |
| MI8X120SU | 120 mm | U radial-port cover | S · PT | $19.97 | |
| MI8X125CA | 125 mm | CA clevis-end cover | - · PT | $18.83 | |
| MI8X125SCA | 125 mm | CA clevis-end cover | S · PT | $19.97 | |
| MI8X125U | 125 mm | U radial-port cover | - · PT | $18.83 | |
| MI8X125SU | 125 mm | U radial-port cover | S · PT | $19.97 | |
| MI8X140SCA | 140 mm | CA clevis-end cover | S · PT | $20.90 | |
| MI8X150CA | 150 mm | CA clevis-end cover | - · PT | $19.76 | |
| MI8X150SCA | 150 mm | CA clevis-end cover | S · PT | $20.90 | |
| MI8X150SCALB | 150 mm | CA clevis-end cover + LB foot bracket | S · PT | $23.23 | |
| MI8X150U | 150 mm | U radial-port cover | - · PT | $19.76 | |
| MI8X150SU | 150 mm | U radial-port cover | S · PT | $20.90 | |
| MI8X200SU | 200 mm | U radial-port cover | S · PT | $23.23 |
Need a combination that is not listed? Request a quote.
Where the MI8 Is Used
Small pushers and stoppers
About 25 N at 0.5 MPa suits light pushers, stoppers, gates and ejectors.
Packaging and assembly
Compact strokes for feeders, diverters and assembly stations.
Sensed positioning
Magnet versions report stroke ends to the PLC through cylinder sensors.
Choosing the Right MI8 Configuration
Start with the stroke. Pick the exact travel your machine needs; a longer stroke adds length, weight and air consumption without adding force. If your length is not listed, request a quote and we will confirm whether it can be built.
Then choose the back cover and mounting. The back cover sets how the rear of the cylinder is fixed or where its air enters (CA clevis-end cover, U radial-port cover). Mounting brackets on this page: FA front flange, LB foot bracket, TC center trunnion. R and U covers set the rear air inlet (axial or radial); a clevis-end cover with an SDB bracket or a TC trunnion lets the cylinder swing, while an FA flange or LB foot holds it rigid.
Finally pick the version: S adds a magnet for position sensors.
AirTAC MI8 FAQ
No. Every MI8 gives about 25 N push and 19 N pull at 0.5 MPa, whatever the stroke.
M5×0.8 ports.
Back covers: CA clevis-end cover, U radial-port cover. Brackets: FA front flange, LB foot bracket, TC center trunnion. Pick a pivoting cover or bracket when the load moves in an arc, a rigid one for straight-line loads.
Usually yes. Request a quote with the stroke, mounting and version and we will confirm whether it can be built, plus price and lead time.
0.15 to 1.0 MPa operating pressure (proof 1.5 MPa) and -20 to +70 °C on filtered air.
No. You can order a single MI8. Orders are processed and handed to the carrier within 3-5 business days.
Buying the MI8 from AirtacDistr
Genuine AirTAC parts
Every order code on this page is the AirTAC factory part number. Specifications follow the AirTAC Products Catalog 2026A. About us
Ready in 3-5 business days
That is our time to process the order and hand it to the carrier. No minimum order: a single piece can be ordered.
14-day returns, 1-year warranty
Return within 14 days of delivery; the buyer pays return shipping. The warranty covers defects not caused by misuse. Return policy
Engineering help
Send your application details and we will confirm the right order code, usually within 7-8 hours. Ask us
Page data checked against the live catalog on 2026-10-28.
Request a Quote for the MI8
Send the order code, quantity and destination. We confirm price, stock and lead time, usually within 7-8 hours.