Airtac MI8~12 Stainless Steel Mini Cylinder MI8X50ULB
The AirTAC Airtac MI8~12 Stainless Steel Mini Cylinder MI8X50ULB is a genuine double acting round-body mini air cylinder with a Ø8mm bore and 50mm stroke, M5×0.8 air ports and a stainless-steel barrel and rod for mildly corrosive environments. Its ISO 6432 mounting interface makes it a compact drop-in for standard mini-cylinder fixtures.
- BoreØ8 mm
- Stroke50 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM4×0.7
- CushionFixed TPU bumper pads
About the Airtac MI8~12 Stainless Steel Mini Cylinder MI8X50ULB
Generating 25.1 N of push force at 0.5 MPa, this AirTAC MI8X50ULB is a compact double-acting round-body mini cylinder built for light-duty automation. Its stainless-steel barrel and Ø4 mm rod shrug off mild corrosion, giving it a real edge over painted alternatives in damp or washdown-prone environments. The 50 mm stroke operates at speeds from 30 to 800 mm/s, and the integrated U-type 90-degree rear cover provides flexible port and mounting orientation right out of the box.
Because the bore is Ø8 mm, the air supply routes through an M5x0.8 port and the male rod thread is M4x0.7. For practical sizing, plan for a real work output of roughly 15 N rather than the absolute maximum rating. In vertical lifting scenarios, this translates to safely hoisting about 1.3 kg when applying a 2:1 safety margin. Fixed TPU bumper pads absorb the impact at stroke extremes to protect the mechanism.
Airtac MI8~12 Stainless Steel Mini Cylinder MI8X50ULB Technical Specifications
| Model | Airtac MI8~12 Stainless Steel Mini Cylinder MI8X50ULB |
|---|---|
| Series | MI ISO 6432 mini cylinder |
| Bore size | Ø8 mm |
| Stroke | 50 mm |
| Acting type | Double acting |
| Port size | M5×0.8 |
| Rod thread | M4×0.7 |
| 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 | Fixed TPU bumper pads |
| Max standard stroke | Up to 150 mm |
Specifications follow the official AirTAC MI/MIC (ISO 6432) datasheet. Barrel & rod: stainless steel (round-body, riveted construction). Thread options: PT (blank) / G.
Theoretical Output Force (Ø8mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 25 N | 19 N |
| 0.7 MPa | 35 N | 26 N |
| Max (@1.0 MPa) | 5 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac MI8~12 Stainless Steel Mini Cylinder MI8X50ULB
| MI | ISO 6432 round-body mini cylinder (double-acting). |
|---|---|
| 8 | Bore size in mm. |
| ×50 | 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 MI8~12 Stainless Steel Mini Cylinder MI8X50ULB Is Used
Micro-Clamp Actuation
Drives small holding fixtures on electronics PCB routing machines, providing 25.1 N of push to secure delicate panels during milling.
Lab Dispenser Positioning
Moves a reagent nozzle precisely across a 50 mm travel path in automated liquid handling stations, benefiting from the stainless build against chemical splashes.
Light Part Ejection
Pushes tiny molded plastic components out of a forming die, using the fixed TPU bumpers to prevent marking the finished part surface.
Is the Airtac MI8~12 Stainless Steel Mini Cylinder MI8X50ULB the Right Cylinder?
When sizing this 8 mm bore, stepping up to the Ø10 version increases the 0.5 MPa push force to 39.3 N if you need more muscle, while Ø8 is the smallest available option in the MI family. This specific configuration includes an LB foot mount for secure base anchoring and a U-type back cover. Because this SKU lacks the -S magnet suffix, it cannot accept CMSG, DMSG or EMSG position sensors; you would need to specify an -S variant for switch readiness.
Remember that a standard double-acting cylinder drifts if air pressure drops or the valve is centered, as the TPU bumpers only decelerate the stroke end without locking the piston. If your application requires the load to stay put during an air loss event, incorporate an external rod lock or a pilot-operated check valve into the pneumatic circuit.
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 MI8~12 Stainless Steel Mini Cylinder MI8X50ULB FAQ
This double-acting cylinder delivers a push of 25.1 N and a pull of 18.8 N at 0.5 MPa. At 0.7 MPa, the push is 35.2 N and the pull is 26.4 N. The theoretical maximum force is 5.1 kgf at 1.0 MPa. It features an M5x0.8 air port and a 4 mm piston rod.
No, because this specific SKU lacks the -S suffix, it does not contain a piston magnet and cannot accept CMSG, DMSG or EMSG switches. You must select an -S variant for position sensing. It uses an ISO 6432 mounting interface for standard mini-cylinder brackets and includes a U-type 90-degree back cover with an LB foot mount.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac MI8~12 Stainless Steel Mini Cylinder MI8X50ULB
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.