REPLACEMENT & CROSS-REFERENCE
Replacement Guide for Helac Rotary Actuators
If the Helac actuator on your Atlas or Sandvik machine is worn, damaged or past its service life, we supply an alternative matched to the original interface. Browse by series, or send us the model code and part number on the tag — our engineering team confirms the exact replacement before you commit.
Browse by series
Select your Helac series
7 models
L10 Series
Compact L10 helical rotary actuators found on Sandvik and Atlas drilling and bolting rigs.
12–26 kg · 180–360°
View models1 model
L20 Series
Mid-size L20 helical actuators including compound-angle builds for mid-size equipment.
56 kg · 180/90°
View models3 models
L30 Series
Large L30 flange and round-flange actuators for heavy-duty rotation on larger rigs.
49–94 kg · 180–360°
View models1 model
L40 Series
Heavy-duty L40 helical actuators for the largest rotation duties.
140 kg · 360°
View models1 model
HTX Series
Splined-shaft HTX70 actuators used on Atlas Boomer and Simba rigs.
HTX70 · 360°
View models2 models
HP Series
Flanged helical actuators from the compact HP-15 to the large HP125, OEM part 3128312645 / L3D.
27–208 kg · 180–360°
View modelsThis guide covers 14 confirmed Helac model codes across six series. If your model is not listed, send the details and we will check the available option.
Questions
Frequently asked questions
Do you supply direct replacements for Helac rotary actuators?+
We supply alternative rotary actuators that match Helac L-series, HP and HP125 units used on Atlas and Sandvik equipment. Rotation, weight and mounting interface are checked against your original unit before we confirm the exact replacement model.
What information do you need to confirm the right replacement?+
The model code on the actuator tag, the OEM part number if visible, and the machine it is fitted to. A photo of the tag and the mounting face lets our engineering team confirm the interface and rotation quickly.
Is the HM replacement model number published online?+
No. The exact HM model and price are confirmed per inquiry so we can verify mounting dimensions and operating parameters with you first, rather than risk a mismatched part.
Request a check
Send us your Helac model details
Give us the model code, the part number on the tag and the machine it is fitted to. We confirm the matching alternative, mounting interface and availability — usually within one working day.
Or email directly: hm@hmhydraulics.com