Airtac MG Stainless Steel Mini Air Cylinder MG40X225
The AirTAC Airtac MG Stainless Steel Mini Air Cylinder MG40X225 is a genuine double acting JIS-standard round-body mini air cylinder with a Ø40mm bore and 225mm stroke, 1/8" air ports and a SUS304 stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ40 mm
- Stroke225 mm
- Port size1/8"
- Acting typeDouble acting
- Rod threadM14×1.5
- CushionFixed anti-impact bumper pads
About the Airtac MG Stainless Steel Mini Air Cylinder MG40X225
The MG40X225 is a double acting, JIS-standard round-body mini cylinder with a 40 mm bore and 225 mm stroke. Its SUS304 stainless barrel is riveted together with the covers and stainless block, and the 16 mm hard-chrome plated rod (M14x1.5 male thread) resists washdown and damp shop air far better than painted-steel minis. At the stroke ends, fixed anti-impact bumper pads soften the direction change - they decelerate only and are not an adjustable air cushion.
In force terms this bore delivers 628.3 N push at 0.5 MPa, so plan on roughly 377 N of real work and expect it to lift about 32 kg vertically with a 2:1 margin. Because the body follows the JIS mini-cylinder standard, standard JIS brackets and I/Y rod knuckles drop straight on - a genuine spares advantage. Note that without air pressure applied the rod drifts freely; for a held load add an external rod lock or a pilot check valve.
Airtac MG Stainless Steel Mini Air Cylinder MG40X225 Technical Specifications
| Model | Airtac MG Stainless Steel Mini Air Cylinder MG40X225 |
|---|---|
| Series | MG JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 225 mm |
| Acting type | Double acting |
| Port size | 1/8" |
| Rod thread | M14×1.5 |
| 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 anti-impact bumper pads |
| Max standard stroke | Up to 500 mm |
Specifications follow the official AirTAC MG-series (JIS standard) datasheet. Barrel: SUS304 stainless steel (round-body, riveted construction); piston rod: carbon steel with 20µm hard-chrome plating. Thread options: PT (blank) / G / NPT.
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 MG Stainless Steel Mini Air Cylinder MG40X225
| MG | JIS round-body mini cylinder (double-acting). |
|---|---|
| 40 | Bore size in mm. |
| ×225 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSG / DMSG / EMSG sensors. |
| FA / LB / CB / SDB | Mounting: FA flange, LB foot, CB clevis, SDB pivot bracket (with CB). |
MG-family variants: MG / MGC (double acting ±cushion), MSG / MTG (single acting push / pull), MGD / MGCD (double rod ±cushion). Accessories: LB foot, FA flange, CB clevis, SDB pivot block, plus I and Y knuckles. Thread PT (blank) / G / NPT.
Where the Airtac MG Stainless Steel Mini Air Cylinder MG40X225 Is Used
Pallet gate actuation
Pushes heavy sliding gates and pallet-stop gates on warehouse lines; 628.3 N at 0.5 MPa moves a loaded gate while the bumper pad takes the sting out of each open-close cycle.
Bottle reject pusher
On a bottling conveyor, the 225 mm stroke sweeps off-spec bottles across the belt in one move, and the stainless barrel copes with constant washdown splash.
Fixture clamp on a drilling jig
Clamps steel workpieces in a machining jig with about 377 N of usable force at 0.5 MPa, holding parts steady through the drilling cycle.
Is the Airtac MG Stainless Steel Mini Air Cylinder MG40X225 the Right Cylinder?
Size down as well as up: the MG32X225 gives 402.2 N push at 0.5 MPa, so if your mechanism needs more than about 400 N the 40 mm bore is the right step, and if 628.3 N is far more than needed the smaller bore saves air and cost. To go beyond this force class with speed control at the ends, move to the cushioned MGC series, which reaches 50 and 63 mm bores. The 225 mm stroke is within the 500 mm standard range, but at this length keep side loads off the 16 mm rod and guide the load externally to avoid rod bending. This SKU has no S code, so no CMSG/DMSG/EMSG sensor can be fitted - order the -S magnet version if position detection is needed. Mount it with LB foot, FA flange, CB clevis or SDB pivot hardware.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting (LB / FA / CB / SDB) & knuckle
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 On first run, back off the cushion/impact settings and release gradually.
- check Installation by qualified personnel per AirTAC docs.
Airtac MG Stainless Steel Mini Air Cylinder MG40X225 FAQ
At 0.5 MPa it pushes with 628.3 N and pulls with 527.8 N; at 0.7 MPa that rises to 879.6 N push and 738.9 N pull. The theoretical maximum at 1.0 MPa is 128.1 kgf. It runs on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), with a proof pressure of 1.5 MPa (215 psi), speeds of 30-800 mm/s and a -20 to +70 C temperature range.
It has fixed anti-impact bumper pads that only soften the stroke-end impact - adjustable air cushioning is an MGC feature. This SKU also carries no magnet, so CMSG, DMSG or EMSG switches cannot be mounted; choose the MG40X225S if you need sensor capability.
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