Corporate Brochure0 pages

Our helical rotary actuator in motion

Helac product lines meet your
individual needs

1
2

3

L-Series LoadBear
Offers integral bearings to carry heavy
axial and side loads. Available with large
diameter shaft flange with drilled and
tapped bolt circle.

4

T-Series TorqBear
Offers a thru-shaft configuration for
torque applications. Available with
splined output shafts.

Custom designs
Over 50 percent of Helac’s rotary actuators
for OEMs are customized to meet our
customers’ application requirements.

Construction equipment attachments
Helac PowerTilt ® and PowerGrip®
products increase the utilization of
backhoes and excavators.

Helac’s Quick Reference Guide
Design Featurest
Helical Rotary Actuatorst
tt
t
t

Operating Technology
Helac actuators are designed to replace multiple
components and function as a rotating device,
mounting bracket and bearing, all-in-one.
Helac’s innovative, sliding-spline operation
technology converts linear piston motion into
powerful shaft rotation. Each actuator is composed
of a housing and two moving parts — the central
shaft and piston. Helical spline teeth on the shaft
engage matching teeth on the piston’s inside
diameter. A second set of helical splines on the
piston’s outside diameter mesh with the gear in
the housing.

The piston is completely
bottomed out. Bars indicate
starting positions of piston and
shaft. Arrows indicate directions
they will rotate. The housing with
integral gear remains stationary.
ENDING POSITION
When hydraulic pressure is
applied to the piston, it moves
axially, while the helical gearing
causes the piston and shaft to
rotate simultaneously. Applying
pressure to the opposite port will
return the piston and shaft to
their original starting positions.

Construction Equipment
Attachments

L10t L20tL30tT20 t PowerTiltt
PowerGrip
Seriest SeriestSeriestSeries

Standard
Configuration
Machine Sizet

STARTING POSITION

—t

—t

—t

—t

From 2t to 35tt

To learn more about Helac Corporation:

From 6t to 21t

In the U.S. & Canada:
t Rotary actuatorst
+1 800 327 2589
t Construction attachmentst +1 800 797 8458

Torque Range
in-lbt
t

1,700-t 4,500-t 17,000-t25,000-t
25,000t 15,000t 740,000t60,000t

25,000-t
220,000t

65,000180,000

Nmt
t

190-t 508-t 1,920-t2,830-t
2,825t 1,690t 83,600t6,780t

2,830-t
24,820t

7,33020,300

psit

3,000t 3,000t3,000t3,000t

3,000t

3,000

bart

210t 210t210t210t

210t

210

Bearing Capacityt
Hight HightHightHight

Hight

High

Internal LeakagetNonet NonetNonetNonet

Nonet

Helical, hydraulic
rotary actuators

None

Worldwide:t

+1 360 825 1601

Pressure Rating

Standard Rotationst
180, 360t
180t
180, 360t
tttt

200, 220t
134, 180t
Select Modelst Select Models

Helac Corporation
225 Battersby Avenue
Enumclaw, WA 98022 USA

120

Shock Resistancet
Hight HightHightHight

Hight

High

Backlasht

Lowt

Low

Lowt LowtLowtLowt

U.S., Europe and other international patents may apply.
© 2014 Helac Corporation. All rights reserved.
Specifications subject to change without notice.

Phone: t+1 360 825 1601
Fax: t +1 360 825 1603
Email:tactuators@helac.com
tattachments@helac.com
Web:twww.helac.com
HA CB/01.14

www.helac.com