
The AirTAC Airtac MGC Stainless Steel Mini Cylinder MGC40X450S is a genuine double acting + cushion JIS-standard round-body mini air cylinder with a Ø40mm bore and 450mm stroke, 1/8" air ports and a SUS304 stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
The AirTAC MGC40X450S is a double acting, JIS-standard round-body mini cylinder with a 40 mm bore and a 450 mm stroke, fitted with a variable air cushion at both ends. Unlike the bumper-type MG, the cushion needles let you dial in end-of-stroke deceleration, so this cylinder can run at higher piston speeds and move heavier loads without hammering the covers. At 0.5 MPa it delivers 628.3 N push and 527.8 N pull, rising to 879.6 N push at 0.7 MPa, with a theoretical maximum of 128.1 kgf at 1.0 MPa. The magnet fitted under the S code allows CMSG, DMSG or EMSG switches to be mounted for position feedback.
Construction follows the JIS mini-cylinder footprint: a SUS304 stainless barrel with covers and stainless block riveted and rolled into place, plus a hard-chrome plated (20 um) carbon-steel rod and a two-way piston seal that also stores lubricant. Ports are 1/8" and the male rod thread is M14x1.5. Operating pressure is 0.15-1.0 MPa (22-145 psi) with air filtered to 40 um, temperature range -20 to +70 C, and speed range 30-800 mm/s. Mounting is via FA flange or LB foot, with I and Y rod knuckles available. Note that the air cushion only decelerates the stroke end; it is not a lock, so use an external rod lock or pilot check valve if the load must be held on air loss.
| Model | Airtac MGC Stainless Steel Mini Cylinder MGC40X450S |
|---|---|
| Series | MGC JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 450 mm |
| Acting type | Double acting + cushion |
| 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 | Variable air cushion, both ends |
| 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.
| 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.
| MGC | JIS round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×450 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSG / DMSG / EMSG sensors. |
| FA / LB | Mounting: FA flange, LB foot. |
MG-family variants: MG / MGC (double acting ±cushion), MSG / MTG (single acting push / pull), MGD / MGCD (double rod ±cushion). Accessories: LB foot, FA flange, plus I and Y knuckles. Thread PT (blank) / G / NPT.
The 628.3 N push at 0.5 MPa and adjustable end cushion let this cylinder stop or divert cartons quickly on a conveyor line without cover hammering, while the -S magnet feeds position signals to the PLC.
On packaging equipment running at elevated stroke speeds, the variable air cushion smooths deceleration of ejector and clamp motions, and the 879.6 N push at 0.7 MPa handles firm case or tray seating.
With a 450 mm stroke, LB foot or FA flange mounting, and cushioning at both ends, this cylinder suits long-travel machine gates and slides where fast cycling and smooth stops protect the mechanism.
At 40 mm bore this MGC sits in the middle of the cushioned range: it gives 628.3 N push at 0.5 MPa, well above the 402.2 N of the 32 mm bore and below the 981.3 N of the 50 mm bore. If you do not need cushioning, the bumper-type MG is the alternative in this bore size; the MGC is the right pick when higher speed or heavier moving loads demand adjustable deceleration. Size by force first: 628.3 N at 0.5 MPa is about 64 kgf, and a safe working rule of 0.6 of that gives roughly 38 kg of usable load, or about 32 kg if lifting vertically at half the force. The 450 mm stroke is within the 500 mm standard limit for this bore, so no made-to-order surcharge applies. Choose the S version (this model) if you need CMSG, DMSG or EMSG sensing, and specify FA flange or LB foot mounting plus I or Y rod knuckles as required. On a 450 mm stroke, watch side loading: keep the rod load aligned or add external guidance to protect the hard-chrome rod and bearings.
Quick checklist
At 0.5 MPa it pushes with 628.3 N and pulls with 527.8 N; at 0.7 MPa those figures rise to 879.6 N push and 738.9 N pull. The theoretical maximum is 128.1 kgf at 1.0 MPa. For sizing, apply about 0.6 of the 0.5 MPa push force as a safe working load.
Each stroke end has an adjustable cushion needle that meters exhaust air to decelerate the piston smoothly, ideal for higher speeds and heavier moving loads; it is not a brake, so use an external rod lock or pilot check valve to hold a load on air loss. The fitted magnet supports CMSG, DMSG or EMSG switches, and the SUS304 barrel with hard-chrome plated rod suits general factory air filtered to 40 um.
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