HELAC ALTERNATIVE
T20-45-E-FT-220-S1-C-H Rotary Actuator
Alternatives & cross-reference · 220° · 5,085 Nm at 207 bar
Looking for an alternative to the Helac T20-45 rotary actuator? This page covers the 220° foot-mount catalog configuration of the T-series dual splined-output-shaft build, with a rated output torque of approximately 5,085 Nm at 207 bar. HM can help review your unit tag, mounting drawings and operating requirements before proposing a suitable solution.
Independently supplied alternative — not an original Helac part. Configuration and fit are confirmed against your unit tag and drawing before ordering.
Cross-reference
Alternatives for Helac T20-45
Compare this unit with other brands at a similar performance level — then send us your tag and mounting drawing and we confirm which option actually fits.
| Brand | Model / series | Key specification |
|---|---|---|
| Helac | T20-45T20-45-E-FT-220-S1-C-H | 5,085 Nm · 220° |
| No other brand is listed at this configuration in the current reference data. Send your tag and drawing — we check available sourcing options for you. | ||
Alternative models are compared by published performance specifications. Mounting dimensions and compatibility must be confirmed before ordering.
What HM checks before recommending a fit
Mounting dimensions
Foot / flange pattern, bolt circle and overall envelope.
Shaft interface
Shaft type, spline / key, diameter and flange arrangement (S1/S2).
Rotation & stops
Rotation angle, end stops and cushioning for your mechanism.
Hydraulic connections
Port size/standard (SAE/UNF), position and counterbalance valve.
At a glance
Quick reference
- Catalog configuration
- T20-45-E-FT-220-S1-C-H
- Original brand
- Helac
- Type
- Rotary actuator
- Rotation
- 220°
- Output torque @207 bar
- 5,085 Nm
- Unit weight
- 58.1 kg
- Mounting styles
- FT foot mount · dual splined output shafts (straddle)
Catalog engineering data · Helac T-series catalog, p. 18
Technical specifications — T20-45 (4,500 in-lb class), 220° build
Performance figures are taken from the published Helac catalog (Helac T-series catalog, p. 18). The full configuration and compatibility are confirmed against your unit tag and mounting drawings before ordering.
| Product type | Hydraulic helical rotary actuator |
|---|---|
| Series / size | T20 series · T20-45 (4,500 in-lb class) |
| Catalog configuration | T20-45-E-FT-220-S1-C-H |
| Rotation angle | 220° |
| Rated operating pressure | 207 bar |
| Output (drive) torque @ rated pressure | 5,085 Nm |
| Holding torque | 10,622 Nm |
| Moment capacity — straddle (S2) | 7,628 Nm |
| Axial load capacity | 3,130 kg |
| Radial load capacity | 3,130 kg |
| Displacement per cycle | 1,356.9 cm³ |
| Unit weight | 58.1 kg |
| Available mounting styles | FT foot mount · dual splined output shafts (straddle) |
| This build | E = English/SAE threads & ports · FT foot mount · 220° rotation · S1 single (cantilever) flange · C counterbalance valve · H standard seals & bearings |
Send us your nameplate and mounting drawing. HM reviews the configuration and cross-brand options, confirms the fit, then quotes the matching unit and price.
Questions
Frequently asked questions
What does the T20-45-E-FT-220-S1-C-H replace?+
T20-45-E-FT-220-S1-C-H is a 220° Helac L-series helical rotary actuator configuration derived from the Parker/Helac HY34-1001 ordering key and Helac T-series catalog, p. 18. It is assembled per the catalog ordering rules rather than read from a specific nameplate, so the exact configuration and compatibility are confirmed against the original unit tag and mounting drawings; our alternative is matched only after that review. Send your tag code or a drawing and we confirm the exact build before quoting.
Is T20-45-E-FT-220-S1-C-H a confirmed factory order code?+
This T-series configuration is derived from the Parker/Helac HY34-1001 ordering key (T20-45 frame, T series with dual splined output shafts, E English/SAE, FT mount, 220° rotation, S1 single/cantilever flange, C counterbalance valve, H standard seals & bearings) and the published T-series performance data. It is a catalog configuration assembled per the ordering rules rather than a code independently verified from a nameplate; the exact build is confirmed against the Helac selection sheet, the original unit tag and the mounting drawing before we quote.
What is special about the T-series dual splined shaft build?+
The T series uses two splined output shafts for straddle mounting, so the published moment figure is the straddle (double-support) rating rather than a cantilever value. Send your tag code and mounting drawing and we confirm the shaft, flange, ports and rotation against the available T-series builds before quoting.
Why is the exact HM model and price not shown?+
We confirm the HM model per inquiry after verifying the interface and operating parameters with you. This avoids shipping a part that looks right by model name but differs in mounting or rotation. Price is provided with that confirmed quote.
Request a replacement review
Need a replacement for T20-45?
Send your existing unit's nameplate and a mounting drawing. HM reviews the configuration and possible alternatives, confirms mounting and compatibility, and recommends the best available sourcing option for your machine.
- Original model / part number
- Machine brand & model
- Quantity & annual demand
- Mounting photo or drawing (if available)
Or email directly: hm@hmhydraulics.com