TWH/TWM lever-roller stopper cylinders include double-acting, spring-assisted double-acting...
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TWH/TWM lever-roller stopper cylinders include double-acting, spring-assisted double-acting and air-retract/spring-extend members. Match platform, bore/stroke, buffer, self-lock and flange drawing; send installed label and load-speed conditions for quotation.
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TWH
H platform double acting
TDH
H double acting with spring
TTH
H air retract, spring extend
TWM
M50 double acting
TDM
M50 double acting with spring
TTM
M50 air retract, spring extend
Send the model, quantity and destination. For multiple items, attach a parts list or BOM.
Match a TWH/TWM Stopper Code
AirTAC TWH/TWM specifications
Helpful for Model Matching:
| Member actions | TWH/TWM double acting; TDH/TDM double acting with built-in spring; TTH/TTM single acting, air retracts and spring extends on air loss. Do not describe spring retraction. |
| Bore and stroke matrix | H platform 20/25×15, 32×20, 40/50/63×30, 80×40 mm. M platform only 50×30 mm. Standard source combinations, not an arbitrary stroke range. |
| Operating pressure | Double acting 0.15–1MPa; single air-retract 20 mm 0.25–1MPa, other bores 0.2–1MPa. Proof 1.5MPa is not service pressure. Built-in-spring double-action minimum not separately tabulated; confirm loaded rod motion. |
| Fluid and temperature | Air filtered 40 μm or finer,−20 to 70°C; lubrication not required; stroke tolerance+1/0 mm. General cylinder piston cushioning uses bumper pads; external roller shock absorber is a separate function. |
| Stopper and buffer | Lever roller L with nonadjustable hydraulic buffer only 20/25; K adjustable buffer 32/40/50/63/80 andM50. Select load-speed curves and adjust permitted buffer range, not a universal rated payload. |
| Magnet and self-lock | Blank no magnet; S magnet. Blank no self-lock; F self-lock. Self-lock prevents struck load rebound during stopping; it is not a safety lock or an unconditional holding-force rating. Magnet does not mean sensor supplied. |
| Ports and sensor interface | H20/25 M5×0.8, H32/40/50 PT1/8, H63/80 PT1/4; M50 PT1/8. Thread code blank; PT only and M5 has no added thread code. Proximity sensor threadM5×0.5 forH20–40; M8×1.0 forH50–80 andM50. |
| Mounting and selection inputs | Flange mounting and member-specific roller/buffer envelope. Compare load mass, speed, friction coefficient, lateral load and available air pressure. Source curves assumeμ=0.1 where labelled; mass/speed diagram must not be read as a universal load guarantee. |
| Replacement buffer boundary | Source replacement table: 20/25 ASA1008; 32/40 ASJ1408; 50 ASJ2210; 63 ASJ2912; 80 ASJ3315. Confirm exact platform, hardware and adjustment before sourcing; M50 is not separately labelled in replacement table. |
| RFQ inputs | Send full member code or label, bore/stroke, magnet, roller/buffer/self-lock options, flange/roller drawing, payload, speed, friction, pressure, quantity and destination. Sensor, shock absorber and supply scope separately confirmed. |
Ordering code matching
Code format
[TWH/TDH/TTH/TWM/TDM/TTM][bore]X[stroke][blank/S][L/K][blank/F]Respect published bore/stroke and L/K combinations; thread field blankTWH50X30SKFTDH32X20KTTH20X15SLTWM50X30KTDM50X30SKFTTM50X30K| 1Member | 2Bore/stroke | 3Magnet | 4Roller/buffer | 5Self-lock | 6Thread |
|---|---|---|---|---|---|
| TWH/TWM double; TDH/TDM double+spring; TTH/TTM air retract, spring extend. | H20/25×15, 32×20, 40/50/63×30, 80×40; M50×30. | Blank none; S fitted. Sensor separate. | L20/25 nonadjustable; K32+ andM50 adjustable. | Blank none; F rebound prevention. | Blank PT; M5 also blank. NoG/NPT field. |
If the label is incomplete, send the readable parts together with a photo.
TWH50X30SKF1Member
TWH/TWM double; TDH/TDM double+spring; TTH/TTM air retract, spring extend.
2Bore/stroke
H20/25×15, 32×20, 40/50/63×30, 80×40; M50×30.
3Magnet
Blank none; S fitted. Sensor separate.
4Roller/buffer
L20/25 nonadjustable; K32+ andM50 adjustable.
5Self-lock
Blank none; F rebound prevention.
6Thread
Blank PT; M5 also blank. NoG/NPT field.
TWH/TWM lever-roller stopper cylinders include double-acting, spring-assisted double-acting and air-retract/spring-extend members. Match platform, bore/stroke, buffer, self-lock and flange drawing; send installed label and load-speed conditions for quotation.
No. H50 andM50 have different roller/flange dimensions; confirm installed drawing. F prevents rebound, not personnel-safety locking. Match moving load, speed, friction, air pressure and permitted buffer adjustment before quotation.
TWH / TWM
TWH / TWM Add other models, quantities, photos, drawings, or a BOM. One request can cover several product groups.
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