HELAC ALTERNATIVE
L30-65-S-RF-360-S1-C-H Rotary Actuator
Alternative rotary actuator for the Helac L30-65-S-RF-360-S1-C-H, a large 360-degree helical rotary actuator with round-flange mount and integral counterbalance valve, supplied for heavy-duty mining use. It is listed by Atlas Copco / Epiroc under part number 3128312644 on the Boomer 282 underground face-drill rig.
Atlas part number
3128312644
Alternative rotary actuator for Helac L30-65-S-RF-360-S1-C-H.
Specifying a new program? Talk to our engineering team →
Independently supplied alternative — not an original Helac or Atlas part. Compatibility is verified before ordering.
At a glance
Quick reference
- Original model
- L30-65-S-RF-360-S1-C-H
- Original brand
- Helac
- Type
- Rotary actuator
- Rotation
- 360°
- Original part no.
- 3128312644
Equipment reference
Known applications
Based on equipment records, part number 3128312644 is the rotary actuator on the Atlas Copco / Epiroc Boomer 282 underground drilling rig, built to the Helac L30-65-S-RF-360-S1-C-H configuration. Confirmation against your machine build plate and the actuator tag is recommended.
If your machine is not listed, send the full model and serial number — other builds may use the same actuator.
Confirmed data only
Technical specifications
| Product type | Hydraulic rotary actuator |
|---|---|
| Rotation angle | 360° |
| Further data | Torque, pressure, port and mounting dimensions are shared with the engineering drawing on request. |
HM alternative model — confirmed on inquiry. Send us your original model number, part number or machine details and we confirm the matching configuration, specifications and compatibility, then quote. The exact HM model is not published online.
Questions
Frequently asked questions
What does the L30-65-S-RF-360-S1-C-H replace?+
It is the model code for a Helac helical rotary actuator providing 360° rotation. It is listed by Atlas under part number 3128312644. Our alternative is matched to the same rotation and mounting interface.
How do I know this fits my machine?+
The same actuator is recorded on the Boomer 282. Before quoting we confirm the mounting face, port position and rotation against the tag and a photo of your unit, so the replacement matches your exact build.
Will this fit an Atlas Copco / Epiroc Boomer 282?+
Yes. On the Atlas Copco / Epiroc Boomer 282 face-drill rig the rotation actuator is supplied under part number 3128312644, corresponding to the Helac L30-65-S-RF-360-S1-C-H configuration (360-degree rotation, round-flange mount, integral counterbalance valve). Before ordering we confirm the mounting face, port position and rotation against the tag and a photo or drawing of your unit.
What do the S-RF and C-H sections of the code mean?+
In this build RF denotes the round-flange mounting interface, C indicates an integral counterbalance valve, and H is the standard nitrile seal package. The S segment and the S1 shaft/end-cap code are part of the factory configuration for this Boomer 282 build; send the full code or a photo of the tag and we confirm the exact variant.
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 check
Looking for an alternative to this model?
Send us the original model number, part number, machine model or a drawing. We check the available option and confirm specifications and compatibility for you.
- Original model / part number
- Machine brand & model
- Quantity & annual demand
- Mounting photo or drawing (if available)
Or email directly: hm@hmhydraulics.com