Festo DHTG-220-4-A Rotary Indexing Table: Complete Technical Guide for Industrial Automation

11 gennaio 2026

Historical parts record: Photos and notes below belong to this record. Confirm the offered unit’s full model, condition and available test evidence before ordering.

What is the Festo DHTG-220-4-A?

The DHTG-220-4-A is Festo's pneumatic rotary indexing table in the 220-class four-position build: a cast aluminium base carrying a machined turntable that steps 90° at a time under air power, with the drive and locating mechanism buried in the housing and the four labelled air ports — A, B, C, D — on the side panel bringing the indexing cylinder and its locking function to life. Festo material number 548093, C8 variant, maximum pressure 8 bar, with a Freudenberg seal ringing the turntable and a through-bore at its centre for utilities to reach the tooling mounted above. It is the component that turns a row of stations into a rotary assembly or test cell: load, process, inspect, unload, each station stepping into place on the same index. One unit, new in original packaging, 15 kg, 1-year warranty as recorded at intake. All 14 photos and 1 video below show this exact unit.

3 min readContent reviewed 7 October 2026

Part details

DHTG-220-4-A, as printed on the housing label
Field	Value
Model	Festo DHTG-220-4-A
Material number	548093, variant C8
Type	Pneumatic rotary indexing table
Max pressure	p max: 8 bar (housing label)
Air ports	A, B, C, D — four labelled port groups on the side panel
Turntable	220-class machined plate, toothed periphery, central through-bore with bolt circle
Sealing	Freudenberg seal ring around the turntable
Base	Cast aluminium square base, four corner mounting holes, dumbbell-shaped relief channel on the underside
Quantity	1 unit, new in original packaging
Warranty	1 year, as recorded at intake
Shipping weight	15 kg as recorded

Scroll sideways to see the full table.

Values are read from the Festo housing label and the photographed construction in the photo set.

How a pneumatic indexer earns its place

An indexing table is the mechanical clock of an assembly cell: every station's fixture bolts to the same turntable, and instead of moving parts between stations, the stations take turns. The DHTG-220-4-A does that stepping pneumatically — the four side ports feed the internal drive cylinder that rotates the table through its index angle, and the housing's locating mechanism pins the turntable at each station so the position repeatability belongs to the table, not to the actuator. The details in the photos are the service-facing half of that design: the machined turntable with its toothed periphery and central bolt circle takes the fixtures; the through-bore passes air or cabling up to the rotating tooling; the Freudenberg seal ring keeps swarf and coolant out of the bearing plane; and the underside relief channel shows where the mechanism breathes inside the housing. The C8 suffix marks this build within Festo's option matrix, and the 8 bar maximum is the standard shop-air ceiling — no special supply needed. In service, an indexer like this fails slow (seal wear, locating-pin wear) and repairs by kit, which is why a new-in-box unit at the 220 size is the part integrators hold for the cell they are quoting today and the one they serviced last year.

Photos and video

All images below are original KOEED warehouse photos. Click any photo to view it full size.

Housing side — The housing side: cast aluminium body with its flowing contour, the six-screw cover panel, and the turntable edge with its black seal ring above.

Festo label — The Festo housing label in full: FESTO, DHTG-220-4-A, 548093 C8, p max: 8bar — the identity a spare-parts desk resolves to the exact build.

Underside view — The underside: square base with its four corner mounting holes, the central black flange ring with the through-bore, and the dumbbell-shaped relief channel milled across the base.

Air ports A B C D — The side panel: four labelled port groups — A, B, C, D — with their threaded connections and plugs, the fasteners and the locating features of the pneumatics bay.

Shipping waybill — The outbound carton with its shipping waybill in place — the logistics record of this shipment.

Turntable top — The turntable from above: the machined plate, the toothed periphery, the Freudenberg seal ring around it, the mounting holes across the face, and the central bore with its bolt circle.

Turntable close-up — The turntable in close-up: Freudenberg lettering on the seal ring, the toothed edge, and the fixture-mounting holes — the working surface as delivered.

Centre flange underside — The central flange from below: the black ring with its fasteners (one marked in red), the large through-bore, and the relief channel running out to the base edges.

Base full view — The base in full: the square machined footprint, corner holes for cabinet mounting, the central flange and the channel — the geometry that lands on a machine frame.

Turntable full face — The turntable face-on: toothed periphery, seal ring, the pattern of fixture holes and the central hub — the whole rotating top in one frame.

Centre hub close — The central hub at close range: the bolt circle of the bore ring, the machined face and its tooling holes — where the fixture or the utilities pass-through lands.

Port panel full — The port panel in full: A and B at the right, C and D toward the centre-left, each with its threaded port and blanking plugs — the air architecture of the indexing cycle.

Top view full — From directly above: the square base, the round turntable, seal ring and hub — the proportion of the 220-class table in one view.

The complete unit in profile: housing contour, turntable and seal above, the port panel at the side, and the FESTO DHTG-220-4-A label on the flank — as it arrived.