Airtac MG Stainless Steel Mini Air Cylinder MG40X500
The AirTAC Airtac MG Stainless Steel Mini Air Cylinder MG40X500 is a genuine double acting JIS-standard round-body mini air cylinder with a Ø40mm bore and 500mm 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
- Stroke500 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 MG40X500
With the largest bore in the MG family, the MG40X500 delivers 628.3 N of push force at 0.5 MPa (879.6 N at 0.7 MPa) over a full 500 mm standard stroke. This double acting JIS round-body mini cylinder pairs a SUS304 stainless barrel with a 16 mm hard-chrome plated rod, and the riveted covers keep the body compact even at this long stroke length. Because it follows the JIS mini-cylinder standard, standard JIS brackets and rod knuckles drop straight on, which makes replacing an older mini cylinder a bolt-on job.
In practice, plan for roughly 375 N of usable work at 0.5 MPa, which means this cylinder lifts about 19 kg vertically with a sensible 2:1 margin. The fixed anti-impact bumper pads soften the stroke ends at speeds up to 800 mm/s, but they do not hold position: if air is lost, the rod drifts, so add an external rod lock or pilot check valve where a load must stay put. Running on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), it suits damp washdown and outdoor spots where painted minis corrode.
Airtac MG Stainless Steel Mini Air Cylinder MG40X500 Technical Specifications
| Model | Airtac MG Stainless Steel Mini Air Cylinder MG40X500 |
|---|---|
| Series | MG JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 500 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 MG40X500
| MG | JIS round-body mini cylinder (double-acting). |
|---|---|
| 40 | Bore size in mm. |
| ×500 | 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 MG40X500 Is Used
Pallet elevator push station
The 628.3 N push at 0.5 MPa raises a loaded pallet platform of about 19 kg with margin, and the 500 mm stroke covers a full lift-and-present cycle in one motion.
Long-travel conveyor reject pusher
A 500 mm stroke sweeps oversized or defective cartons off a wide conveyor lane, with the fixed bumper pad absorbing the kick at each end of the sweep.
Bottle-line lid press
At 0.7 MPa the 879.6 N push seats snap-on lids on 20 L pails in a bottling plant, and the stainless barrel shrugs off daily hose-down washdown.
Is the Airtac MG Stainless Steel Mini Air Cylinder MG40X500 the Right Cylinder?
At 628.3 N push and 527.8 N pull at 0.5 MPa, the 40 mm bore is the top of the MG range; step down to the 32 mm bore (402.2 N push at 0.5 MPa) if your load is lighter and you want a smaller envelope, or move to the cushioned MGC series in 50 or 63 mm bores when you need more force plus adjustable end-of-stroke deceleration. This SKU has no magnet, so CMSG, DMSG or EMSG switches cannot be fitted; order the S version (MG40X500S) if you need position sensing. Mount it with LB foot, FA flange or CB clevis hardware, and SDB pivot brackets pair with CB clevis. At 500 mm of stroke, keep side loads off the 16 mm rod and guide the load externally to avoid rod bending.
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 MG40X500 FAQ
At 0.5 MPa it pushes with 628.3 N and pulls with 527.8 N; at 0.7 MPa those rise to 879.6 N push and 738.9 N pull. The theoretical maximum is 128.1 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa (22-145 psi) with a 1.5 MPa (215 psi) proof rating, and rod speed runs 30-800 mm/s.
Not on this SKU. It has no built-in magnet, and the CMSG, DMSG and EMSG switches only trigger on the magnet-equipped S version, so order MG40X500S if sensing is needed. The cylinder itself is a JIS-standard round-body unit with a SUS304 stainless barrel, 1/8" ports, an M14x1.5 male rod thread and fixed anti-impact bumper pads that decelerate the stroke ends without acting as an adjustable cushion.
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