Specifications: MF40X350SCMTCT — AirTAC MF stainless steel mini cylinder, double acting, single rod, 40 mm bore and 350 mm stroke. NPT1/4 port; magnetic piston.
Product Catalog
Download Airtac Product Catalog (PDF)
Download AirTAC 2022 Sensor and Mounting Compatibility Guide (PDF)
Download 2022 mounting brackets (PDF)
Download 2022 rod-end joints and sensor mounts (PDF)
Download 2022 cylinder installation and weight tables (PDF)
For detailed product dimensions and mounting drawings, please download and refer to the PDF catalog.
Model Code Explained
Code
Meaning
MF
stainless steel mini cylinder; double acting, single rod
40
Cylinder bore: 40 mm
X350
Stroke: 350 mm
S
Magnetic piston
CM
round threaded rear cover
TC
trunnion bracket
T
NPT thread
Technical Specifications
Parameter
Details
Model
MF40X350SCMTCT
Product type
stainless steel mini cylinder
Operation
double acting, single rod
Bore
40 mm
Stroke
350 mm
Piston-rod diameter
16 mm
Rod-end thread
M14 × 1.5
Working medium
Air filtered to 40 µm or finer
Operating pressure
0.15–1.0 MPa
Proof pressure
1.5 MPa
Operating temperature
−20 to +70 °C
Piston speed
30–800 mm/s
Port
NPT1/4
Cushioning
Bumper
Magnetic piston
Included (S)
Stroke tolerance
+1.0 / 0 mm up to 150 mm; +1.5 / 0 mm above 150 mm
Rear cover
round threaded rear cover
Mounting code in this model
TC — trunnion bracket
Features and Operation
Alternating the supply and exhaust at the two cylinder ports drives extension and retraction.
The tube and end-cover construction is not intended for dismantling. Protect the rod and sliding surfaces, and keep the load aligned with the cylinder axis.
External and Mounting Dimensions
The following symbols refer to the MF drawing for 40 mm bore, 350 mm stroke and CM rear cover in the 2022 cylinder catalog, printed page 94. Values are in mm unless a thread or formula is stated. The symbols retain the drawing references and must not be rearranged into an unsupported length × width × height.
Parameter
Details
A — base length before the stroke term
154 mm
AB
50 mm
AC
88 mm
B — body dimension in the drawing
42.5 mm
R — outside-body dimension in the drawing
46.5 mm
G
41 mm
EA
22.5 mm
Overall length from the printed formula
504 mm
Drawing length relation
A + stroke
TC mounting reference from printed page 96; use the dedicated bracket drawing to locate the symbols. The fixed bracket values below are distinct from stroke-dependent cylinder assembly dimensions.
Parameter
Details
B
11 mm
D
27 mm
E
53 mm
F
77 mm
G
10 mm
H
14 mm
J
53 mm
For detailed product dimensions and mounting drawings, please download and refer to the PDF catalog.
Compatible Accessories and Sensors
Accessory code
Purpose and compatibility
F-MF40LB
F-MF40LB: foot bracket for MF series, 40 mm bore. Optional; not implied by this model code.
F-MF40FA
F-MF40FA: front flange for MF series, 40 mm bore. Optional; not implied by this model code.
F-MF40TC
F-MF40TC: trunnion bracket for MF series, 40 mm bore. Matches the mounting code selected in this model.
F-MF32SDB
F-MF32SDB: rear pivot bracket for MF series, 40 mm bore. Optional; not implied by this model code. The bracket is supplied with its matching pin.
F-MF40I
F-MF40I: rod-end eye joint for MF series, 40 mm bore. Optional; not implied by this model code.
F-MF40Y
F-MF40Y: rod-end fork joint for MF series, 40 mm bore. Optional; not implied by this model code.
F-M14X150F
F-M14X150F: floating joint for MF series, 40 mm bore. Optional; not implied by this model code.
F-M14X150U
F-M14X150U: spherical rod-end joint for MF series, 40 mm bore. Optional; not implied by this model code.
For this magnetic MF cylinder with 40 mm bore, the 2022 sensor selection table lists CMSG and DMSG with the round-cylinder mounting band F-MQS40. The band matches the stainless steel cylinder body; do not substitute a tie-rod bracket or a different bore size. Sensors and bands are selected separately and are not implied by the S piston-magnet code.
Fit the sensor into the band holder, wrap and fasten the band around the cylinder, move it to the required detection position, then tighten the sensor and band fasteners. Select the complete sensor order code to match the required supply voltage, output circuit, wiring and cable length; CMSG/DMSG here identify compatible sensor profiles.
Weight Reference
1744.9 g — estimated configuration weight. Matched to the catalog series, bore, stroke, cover and magnetic option; interpolated figures are estimates where no exact stroke row is printed. The selected TC mount adds an approximate 352.4 g based on its catalog plate envelope and steel density; holes and supplied fasteners are not individually weighed. Catalog weights and estimates are for reference only; actual product weight prevails.
Force Reference
Calculated theoretical force at 0.5 MPa: extension 628.0 N; retraction 527.5 N, using bore 40 mm and rod diameter 16 mm. This pressure × effective-area calculation excludes friction, acceleration and safety/load factors; it is not a guaranteed usable load. Check the actual operating pressure and mechanism load.
Internal Components and Materials
Component
Catalog material
Tube
SUS304 stainless steel
Piston rod
S45C, hard-chromed and ground
Front / rear covers and piston
Aluminum alloy
O-rings
NBR
Bumper
TPU
Guide bush and wear ring
Wear-resistant material
Magnet
Sintered neodymium-iron-boron
Magnet pad / holder
NBR / aluminum alloy
Series Ordering Reference
Standard strokes listed for this bore and operating variant: 10, 15, 20, 25, 30, 40, 50, 60, 75, 80, 100, 125, 150, 160, 175, 200, 250, 300, 350, 400, 450, 500 mm. These are alternative order selections; they are not additional travel available from the current cylinder.
Select the operating variant, bore, stroke, magnetic option, rear-cover form, mounting accessory and pipe-thread option from the corresponding ordering chart. Do not transfer rear-cover or mount choices between single-rod, double-rod and adjustable-stroke versions without checking their dedicated row.
Selection, Installation and Use
Select the bore and operating pressure from the required force, then check the stroke, moving load, speed, cushioning and mounting method for the mechanism.
Flush the air lines before connection. Keep sealing tape or sealant clear of the first 1–2 thread turns and prevent water, particles or corrosive gases entering the cylinder.
Keep the rod axis aligned with the load. Provide guides or supports where needed; avoid direct side loading and twisting of an unguided piston rod.
Start speed adjustment with the flow-control valve closed and open it gradually. Meter-out control is the usual reference circuit; verify the actual single-acting or double-acting circuit.
Factory-prelubricated cylinders can be used without additional lubrication. If a lubricator is used, the general instructions specify additive-free ISO VG32 turbine oil and continued lubrication.
Isolate the air supply and exhaust residual pressure before servicing. Secure retained loads and prevent unexpected movement on restart. Protect against freezing, corrosion and strong external magnetic fields where magnetic sensing is used.
Circuit-selection reference at a theoretical 500 mm/s: for 40 mm bore the general catalog lists effective area 3.3 mm², valve examples 5V11006 / 5V12006, pneumatic-pilot alternatives 4A11006 / 4A12006, flow control PTL01, silencer BSL01, and tubing 8 mm OD × 5 mm ID. These are selection examples, not included components or a guaranteed installed speed; check actual port/thread adapters, pressure loss, tube length and load.
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