Airtac MGCD Stainless Steel Mini Air Cylinder MGCD40X400S
The AirTAC Airtac MGCD Stainless Steel Mini Air Cylinder MGCD40X400S is a genuine double acting, double rod + cushion JIS-standard round-body mini air cylinder with a Ø40mm bore and 400mm 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
- Stroke400 mm
- Port size1/8"
- Acting typeDouble acting, double rod + cushion
- Rod threadM14×1.5
- CushionVariable air cushion, both ends
About the Airtac MGCD Stainless Steel Mini Air Cylinder MGCD40X400S
The AirTAC MGCD40X400S is a double acting, double-rod JIS round-body mini cylinder with a 40 mm bore and a 400 mm stroke. Because a 16 mm rod exits both covers with the same M14x1.5 male thread at each end, the piston works on the rod-side area in both directions, so the output force is equal either way: about 527.8 N at 0.5 MPa and 738.9 N at 0.7 MPa, with a theoretical maximum of 107.6 kgf at 1.0 MPa. A variable air cushion at both ends lets you tune the deceleration at each end of the stroke, so the 400 mm travel can be run at higher speeds with smooth, controlled stops instead of hard metal-to-metal impact.
The rear rod end is what sets this layout apart: it can carry a second load, drive a flag, or trip position checks, while the through-rod naturally resists rotation. The barrel is SUS304 stainless and the rods are hard-chrome plated carbon steel, with riveted covers and a two-way lubricant-storing piston seal for long service. This -S variant carries a magnet, so CMSG, DMSG or EMSG switches can be clipped on for end-of-stroke signalling. Air supply is filtered to 40 um, operating pressure is 0.15-1.0 MPa (22-145 psi) with proof at 1.5 MPa (215 psi), temperature range -20 to +70 C, and speed 30-800 mm/s. As a rule of thumb, keep the working load near 0.6 of the push force (about 317 N); for a vertical lift that is roughly 26 kg.
Airtac MGCD Stainless Steel Mini Air Cylinder MGCD40X400S Technical Specifications
| Model | Airtac MGCD Stainless Steel Mini Air Cylinder MGCD40X400S |
|---|---|
| Series | MGCD JIS mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 400 mm |
| Acting type | Double acting, double rod + 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.
Theoretical Output Force (Ø40mm)
| Pressure | Force (both ways) |
|---|---|
| 0.5 MPa | 528 N |
| 0.7 MPa | 739 N |
| Max (@1.0 MPa) | 108 kgf |
Double-rod: a rod exits both covers, so output force is equal in both directions (rod-side area used).
Model Code: Airtac MGCD Stainless Steel Mini Air Cylinder MGCD40X400S
| MGCD | JIS round-body mini cylinder (double-rod, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×400 | 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.
Where the Airtac MGCD Stainless Steel Mini Air Cylinder MGCD40X400S Is Used
High-speed anti-rotation transfer
The 400 mm through-rod stroke moves parts between stations without rotating, and the variable air cushion at both ends absorbs the momentum of fast 30-800 mm/s travel, so fixtures arrive smoothly at 527.8 N of equal force in each direction.
Twin-load press with soft stop
Rod ends on both covers press two workpieces at once with matched 738.9 N force at 0.7 MPa, while the adjustable air cushion eases the piston down at each end, protecting delicate assemblies from impact at the bottom of the stroke.
Rear-switch slide with position feedback
The magnet fitted to this -S model works with CMSG, DMSG or EMSG switches on the 400 mm barrel, and the rear rod end drives a stop or flag, giving a cushioned, equal-force slide with end-of-stroke signalling on a 1/8" air supply.
Is the Airtac MGCD Stainless Steel Mini Air Cylinder MGCD40X400S the Right Cylinder?
Size the MGCD by force, not bore alone: this 40 mm bore delivers 527.8 N in both directions at 0.5 MPa, sitting between the 32 mm (345.6 N) and 50 mm (824.3 N) cushioned double-rod frames, so step up to 50 mm if your load needs more margin. Choose the MGCD when you need equal force both ways plus adjustable cushioning; if you want a double-rod cylinder with a fixed bumper pad instead of an air cushion in this size range, the MGD (bores 20-40) is the alternative, and for a single rod with a cushion the MGC is the right pick. The 400 mm stroke is within the 500 mm maximum standard stroke for this bore, so no custom build is needed. Mounting is FA flange or LB foot, with I and Y rod knuckles available (no CB or SDB options on this family). The S in the model code means the magnet is fitted, enabling CMSG, DMSG or EMSG reed switches; order a non-S code if you do not need sensing. Ports are 1/8" with PT thread as standard (G and NPT optional). At 400 mm of stroke, keep side loads on the rod low and use a knuckle or guide arrangement to protect the bearings.
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) & 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 and release gradually.
- check Installation by qualified personnel per AirTAC docs.
Airtac MGCD Stainless Steel Mini Air Cylinder MGCD40X400S FAQ
Because both sides of the piston see the rod-side area, force is equal in both directions: 527.8 N at 0.5 MPa and 738.9 N at 0.7 MPa, with a theoretical maximum of 107.6 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof pressure is 1.5 MPa (215 psi), temperature range is -20 to +70 C, speed is 30-800 mm/s, and the fluid is air filtered to 40 um. Ports are 1/8" and the rod thread is M14x1.5 at both ends.
The cushion at each end is an adjustable air chamber that decelerates the piston near the end of the stroke, so you can tune the stop for higher speeds or heavier loads; it is not a brake and does not hold the load if air is lost, so use an external rod lock or pilot check valve where holding is required. Unlike the MGD, which uses fixed bumper pads, the MGCD has an adjustable air cushion, and unlike the single-rod MGC it has a rod at both ends, giving equal force both ways plus a rear rod end for a second load or flag. The fitted magnet (S code) allows CMSG, DMSG or EMSG switches.
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.
Related AirTAC MGCD Cylinders
Request a Quote for Airtac MGCD Stainless Steel Mini Air Cylinder MGCD40X400S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.