Airtac MARU Stainless Steel Mini Cylinder MARU40X30S
The AirTAC Airtac MARU Stainless Steel Mini Cylinder MARU40X30S is a genuine double acting + cushion (up mount) standard round-body mini air cylinder with a Ø40mm bore and 30mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service. A variable air cushion at both ends lets you tune end-of-stroke deceleration on site.
- BoreØ40 mm
- Stroke30 mm
- Port size1/8"
- Acting typeDouble acting + cushion (up mount)
- Rod threadM12×1.25
- CushionVariable air cushion, both ends
About the Airtac MARU Stainless Steel Mini Cylinder MARU40X30S
Short throw, full force: the MARU40X30S travels just 30 mm but keeps the entire 40 mm bore rating - 628 N push and 528 N pull at 0.5 MPa, or 880 N push at 0.7 MPa. Inside sits the usual MA build: a stainless round barrel, a hard-chrome plated 16 mm rod, and aluminium covers riveted into a sealed, double-acting unit with a variable cushion at each end.
Its U front bracket is part of the cylinder itself, so it bolts directly onto a machine face with no add-on foot or flange. Budget about 377 N of working force at 0.5 MPa - enough to lift roughly 32 kg vertically with a 2:1 margin - and use the standard magnet with CMSG, DMSG or EMSG switches to confirm the quick stroke.
Airtac MARU Stainless Steel Mini Cylinder MARU40X30S Technical Specifications
| Model | Airtac MARU Stainless Steel Mini Cylinder MARU40X30S |
|---|---|
| Series | MAR mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 30 mm |
| Acting type | Double acting + cushion (up mount) |
| Port size | 1/8" |
| Rod thread | M12×1.25 |
| 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 MA-series datasheet. Barrel: stainless-steel tube (round-body, riveted rolling-packed construction); piston rod: carbon steel with 20µm hard-chrome plating; covers: aluminium alloy. Thread options: PT (blank) / G / NPT. Every MA-series cylinder ships with a built-in magnet for CMSG / DMSG / EMSG position sensors.
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 MARU Stainless Steel Mini Cylinder MARU40X30S
| MAR | Standard round-body mini cylinder (double-acting, integrated mount, variable cushion). |
|---|---|
| U | Front-cover mount: U = up (top) mounting. |
| 40 | Bore size in mm. |
| ×30 | Stroke length in mm. |
| -S | Built-in magnet for CMSG / DMSG / EMSG sensors (standard on MA series). |
MA-family variants: MA / MAC (double acting ±cushion), MSA / MTA (single acting push / pull), MAD / MACD (double rod ±cushion), MAJ / MACJ (adjustable stroke ±cushion), MAR (cushioned with integrated F/U mount). Mounting accessories: FA flange, LB foot, SDB pivot; plus I and Y knuckles. Thread PT (blank) / G / NPT.
Where the Airtac MARU Stainless Steel Mini Cylinder MARU40X30S Is Used
Marking head stamp
Driving a hand stamp or dot-peen head for a 30 mm hit on aluminium plates; the cushion kills the rebound.
Bag clamp on filler
Clamping a film bag neck on a small filling machine, where 628 N holds the bag until the fill cycle ends.
Diverter flap sorter
Flicking a sortation flap between two chutes; the short stroke keeps the mechanism compact and the magnet confirms flap position.
Is the Airtac MARU Stainless Steel Mini Cylinder MARU40X30S the Right Cylinder?
For a 30 mm throw you could drop to a 32 mm MAR at 402 N or step up to a 50 mm MAR at 981 N; stay with the 40 when you need 628 N in a tight envelope. A stroke this short rarely needs external guiding, but check rod buckling if the load is compressive and rigid - confirm from datasheet. The cylinder will not hold a clamped state through an air loss, so a rod lock is the fix where that matters; the cushion only softens the stroke ends. Standard magnet, 1/8" ports, PT threads unless you specify G or NPT.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (-S) is standard for sensors
- ✓ Back cover (CA/U/CM) & mount (FA/LB/SDB)
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 screws and release gradually.
- check Installation by qualified personnel per AirTAC docs.
Airtac MARU Stainless Steel Mini Cylinder MARU40X30S FAQ
At 0.5 MPa: push 628 N, pull 528 N. At 0.7 MPa: push 880 N, pull 739 N. Theoretical maximum: 128.1 kgf at 1.0 MPa. Bore 40 mm, stroke 30 mm, rod 16 mm with M12x1.25 thread, 1/8" ports, pressure 0.15-1.0 MPa (22-145 psi), speed 30-800 mm/s.
The U bracket is integral to the front cover, so the cylinder hangs from its own top mount without buying a separate flange or foot accessory. Bolt the bracket to a machined pad, keep the mounting face square to the load, and the M12x1.25 rod thread accepts I or Y knuckles if you need a swivel joint.
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 MARU Stainless Steel Mini Cylinder MARU40X30S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.