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FHA-Mini Rotary Actuator
Introducing the FHA-C Mini Series: ultra-compact rotary actuators that blend high torque, pinpoint accuracy, and consistent performance. These units feature a precision Harmonic Drive® gear with a pancake brushless servo motor and offer a choice of an incremental or multi-turn absolute encoder for detailed velocity and position feedback. Its robust cross roller bearing supports direct heavy load mounting, eliminating the need for extra support. Newly added features include Dual Absolute Encoder and panel mount connectors for enhanced flexibility.
Designed for compatibility, FHA Mini actuators function seamlessly with various servo drives such as Harmonic Drive's REL, RTL, DDP, HA-680, and Mitsubishi's MELSERVO-J4 (SSCNET III/H). An option for a built-in servo drive further simplifies integration.
FHA-Mini Rotary Actuator Features:
- No backlash for utmost precision
- Sleek, space-saving design
- Hollow-shaft option for easy cable management (incremental encoder version)
- Choice of encoders, now including a Dual Absolute Encoder
- Strong cross roller bearing for high-load applications
- Exceptional torque efficiency
- New panel mount connector feature
- Direct compatibility with Mitsubishi MELSERVO-J4
- Available with an integrated servo drive for streamlined setup
FHA-Mini Rotary Actuator Diagrams:
FHA-Mini Rotary Actuator Dimensions:
Specification / Model | FHA-8C | FHA-11C | FHA-14C | ||||||||
Gear Ratio | 30 | 50 | 100 | 30 | 50 | 100 | 30 | 50 | 100 | ||
Maximum Torque | N.m | 1.8 | 3.3 | 4.8 | 4.5 | 8.3 | 11 | 9.0 | 18 | 28 | |
in-lb | 15.9 | 29.2 | 42.5 | 39.8 | 73.5 | 97.4 | 79.7 | 159.3 | 247.8 | ||
Maximum Speed | rpm | 200 | 120 | 60 | 200 | 120 | 60 | 200 | 120 | 60 | |
Torque Constant (100V-200VAC) |
Nm/A(rms) | 3.9 | 6.7 | 14 | 3.8 | 6.6 | 13 | 4.2 | 7.2 | 15 | |
in-lb/A(rms) | 34.5 | 59.3 | 123.9 | 33.6 | 58.4 | 115.1 | 37.2 | 63.7 | 132.8 | ||
Torque Constant (24VDC) |
Nm/A(rms) | 0.8 | 1.3 | 2.7 | 0.8 | 1.3 | 2.6 | 0.8 | 1.4 | 2.9 | |
in-lb/A(rms) | 7.1 | 11.5 | 23.9 | 7.1 | 11.5 | 23.0 | 7.1 | 12.4 | 25.7 | ||
Positioning Accuracy | arc-sec | 150 | 120 | 120 | 120 | 90 | 90 | 120 | 90 | 90 | |
Maximum Moment Load | Nm | 15 | 40 | 75 | |||||||
in-lb | 133 | 354 | 664 | ||||||||
Moment Stiffness | Nm/rad | 2 x 104 | 4 x 104 | 8 x 104 | |||||||
in-lb/rad | 18 x 104 | 35 x 104 | 71 x 104 | ||||||||
Moment of Inertia (GD2/4) |
Incremental | kg-m2 | 0.0026 | 0.0074 | 0.029 | 0.0060 | 0.017 | 0.067 | 0.018 | 0.050 | 0.20 |
ABS | kg-m2 | 0.0026 | 0.0073 | 0.029 | 0.0062 | 0.017 | 0.069 | 0.019 | 0.054 | 0.215 | |
Dual ABS | kg-m2 | 0.0036 | 0.0100 | 0.0399 | 0.007 | 0.019 | 0.077 | 0.019 | 0.052 | 0.206 | |
Encoder Type | Incremental | 2000 pulse/revolution | |||||||||
Absolute | Multi-turn 16bit (65536 cpr), Single turn (motor) 17bit (131072 cpr) | ||||||||||
Output shaft resolution* | Incremental | counts/rev | 240,000 | 400,000 | 800,000 | 240,000 | 400,000 | 800,000 | 240,000 | 400,000 | 800,000 |
Single ABS | 3,932,160 | 6,553,600 | 13,107,200 | 3,932,160 | 6,553,600 | 13,107,200 | 3,932,160 | 6,553,600 | 13,107,200 | ||
Dual ABS Motor | 491,520 | 819,200 | 1,638,400 | 491,520 | 819,200 | 1,638,400 | 491,520 | 819,200 | 1,638,400 | ||
Dual ABS Output | 16,384 | 16,384 | 16,384 | 16,384 | 16,384 | 16,384 | 16,384 | 16,384 | 16,384 | ||
Mass | Incremental | kg | 0.40 | 0.62 | 1.2 | ||||||
ABS | kg | 0.50 | 0.75 | 1.3 | |||||||
Dual ABS | kg | 0.40 | 0.62 | 1.2 | |||||||
Servo Drive** |
Incremental (14 wire) |
24VDC | DCJ-055-09, DDP-090-09 | DCJ-055-18, DDP-090-18 | DDP-090-36 | ||||||
HA-680-4-24 | HA-680-6-24 | ||||||||||
100V/200VAC | RTL-230-18, REL-230-18 | ||||||||||
HA-800-1 | |||||||||||
Incremental (4 wire serial) |
24VDC | BEL or BPL-090-06 | BEL or BPL-090-14 | BEL or BPL-090-30 | |||||||
100V/200VAC | REL-230-18 | ||||||||||
Single ABS | 24VDC | BEL or BPL-090-06 | BEL or BPL-090-14 | BEL or BPL-090-30 | |||||||
100V/200VAC | REL-230-18 | ||||||||||
Dual ABS | 24VDC | BEL or BPL-090-06 | BEL or BPL-090-14 | BEL or BPL-090-30 |
- Incremental encoder resolution at the output of the actuator = (encoder resolution) x 4 x (gear ratio)
- Absolute encoder resolution at the output of the actuator = (encoder bit count) x (gear ratio)
- Driver Communication - DCJ (Step & Direction / Analog), DDP (CanOpen®), REL (EtherCat®), HA-680 & HA-800 available for MechatroLink™ and CC-Link®
- Options for Panel Mount Connectors [Available for 24VDC version only]
Sample image only. Product may differ