HEIDENHAIN (Germany) is the global benchmark for precision encoders and CNC controls. The ECN/EQN 1300 series are built-in rotary encoders with 25-bit resolution (33,554,432 positions per revolution), ±20 arcsec system accuracy, an integrated 4096-revolution multiturn gear for EQN, EnDat 2.2 and DRIVE-CLiQ interfaces, functional safety to SIL 2 and a Ø56 mm housing for servo motor and robot joint integration.
Neugart (Germany) is a leading precision planetary gearbox maker. The PSNpro succeeds the discontinued PSN as its high-torque precision line: helical gearing for low-noise synchronisation, preloaded tapered roller bearings and a square output flange for high loads, cyclic torque from 14 to 1800 Nm, ratios 3-100, efficiency 96-97% and IP65 protection, built for high-dynamic, high-cycle applications.
ATI Industrial Automation (USA) is the de-facto standard for six-axis force/torque sensing in robotics. The Mini40 uses silicon strain-gauge technology with 25 NIST-traceable calibration ratings, ±0.003% FS repeatability and IP60/65/68 options, widely used for collaborative polishing, assembly and force-control research.
The AZ Series is Oriental Motor's (Japan) αSTEP closed-loop stepper family with a built-in mechanical absolute encoder (ABZO) for battery-free absolute positioning without external sensors. Its hybrid control runs open-loop under normal load and switches to closed-loop correction on overload, combining stepper responsiveness with servo-level reliability, tuning-free and without stop-position hunting. Frames span NEMA 8 to NEMA 34 with holding torque up to 4 N·m standard and 110 N·m geared; brake, IP66 connector and geared variants are available, and matching drivers support EtherCAT, EtherNet/IP, PROFINET and Modbus.
SPINEA (Slovakia, now part of Timken) is a European leader in precision cycloidal reduction and integrated actuators. DriveSpin combines an optimized servomotor with a TwinSpin cycloidal gear into a zero-backlash, high-dynamic actuator with high torsional/tilting stiffness and integrated output bearing: DS Standard covers 18-460 N·m rated torque with up to 1150 N·m acceleration/braking torque, ratios 47-133, 2000 rpm rated input; DSH hollow-shaft, DSM modular and DSF flat variants complete the line. Used in 6-axis robots, gantries and manipulators, CNC machines, bending machines, medical equipment, aerospace, flight simulators, semiconductor and radar systems.
ATI Industrial Automation (USA) is a world leader in robot tooling and force/torque sensing. The Gamma 6-axis F/T sensor is machined from high-strength aircraft aluminum with silicon strain gages producing a signal 75x stronger than foil gages for near-zero noise. Ratings span SI-32-2.5 to SI-130-10 (32-130 N Fxy, 100-400 N Fz, 2.5-10 N·m), with 6.9-31.6x rated overload (±1200 N Fxy, ±4100 N Fz, ±79 N·m Txy, ±82 N·m Tz), IP60/IP65/IP68 (10 m) versions, 0.255 kg, Ø75.4 mm x 33.3 mm, 1400-2000 Hz resonant frequency, 16-bit DAQ / EtherCAT / Net / WNet systems and NIST-traceable calibration; used for real-time force control, robotic assembly, haptics and part testing.
maxon (Switzerland) is a world-leading precision drive manufacturer. The EC frameless DT (Dynamic Torque) family is an inner-rotor frameless torque motor kit (stator + rotor) with large hollow shaft, low-voltage DC and full potting: four frames DT38–DT85 (42–90 mm OD), 0.13–3.42 N·m continuous torque with heatsink, up to 9.63 N·m peak, 3,000–15,000 rpm max speed, cogging as low as 0.5 mNm, torque density up to 4.5 N·m/kg, -40 to +100 °C. Optional integrated TSX MAG incremental or TSX RIO 19-bit absolute encoder; pairs with maxon strain-wave/planetary gears and EPOS/ESCON controllers into High Precision/Efficiency Joints for humanoid and quadruped robots, cobots, surgical robots and exoskeletons, semiconductor handling, and aerospace actuators.
Renishaw (UK) is a world leader in precision measurement and encoders. RESOLUTE is a high-speed, fine-resolution true-absolute open optical encoder system: the readhead acts as an ultra-fast miniature camera imaging a single-track 30 um-pitch absolute scale, with a DSP computing absolute position - position is available immediately at switch-on with no battery and no multi-track de-phasing. Linear resolution down to 1 nm, rotary up to 32 bit (4,294,967,296 counts/rev, ~0.0003 arcsec), max reading speed 100 m/s (36,000 rpm), SDE +/-40 nm and jitter <10 nm RMS, with dirt-immune scale reading. Variants include UHV (120 C bake-out), ETR (-40 to +80 C) and FS (functional safety SIL 2 / PL d); serial interfaces cover BiSS C / BiSS Safety, FANUC, Mitsubishi, Panasonic, Siemens DRIVE-CLiQ and Yaskawa. Linear scales RTLA/RELA/RSLA up to 21 m; RESA30/REXA30 rotary rings 52-550 mm with typical installed accuracy of +/-1.9 arcsec. Used in semiconductor equipment, radar/SATCOM antennas, precision rotary tables and high-end robot joints.
RLS (Slovenia, part of the Renishaw group) is a specialist in rotary and linear magnetic encoders. AksIM-2 is a non-contact off-axis absolute rotary encoder module for applications with limited installation space: a compact, low-profile readhead detects the field of a thin axially magnetized ring. It uses a custom magnetic-sensor ASIC with BiSS C, SSI or asynchronous serial output, resolutions up to 20 bits, true absolute measurement with no hysteresis, built-in self-monitoring and a self-calibration option, and immunity to external magnetic fields; system accuracy after self-calibration is +/-0.004 to +/-0.020 deg (+/-14 to +/-72 arcsec), max speed 10,000 rpm, 4.5-5.5 V supply (typ. 130 mA); ring inner diameters span 8-68 mm in 11 sizes with -40 to +105 C operation. Used for position feedback in electric motors, medical devices and robot joints.
TQ-RoboDrive (TQ-Systems, Germany) commercialized the DLR (German Aerospace Center) motor design and leads in frameless torque motors for humanoids and cobots - PAL Robotics calls its torque-to-weight ratio 'unsurpassed'. The premium ILM (Innenlaeufer) family spans 14 kits from ILM25 to ILM115: rated torque 0.033-3.9 N-m, 24/48 V, up to 22,378 rpm; the cost-optimized ILM-E series adds 9 models (ILM-E50 to E85) at 0.32-3.3 N-m, 48 V with the same torque per kilogram. Stator-rotor frameless kits with spacious hollow shafts, high copper fill factor for low thermal loss, 100% Made in Germany - used in humanoids, cobots, exoskeletons, surgical robots, aerospace and precision automation.
The TSJA series (14/17/20/25) are TLIBOT's ultra-lightweight integrated joints combining motor, reducer, dual 19-bit encoders and a tooth-mesh electromagnetic brake at 48V with EtherCAT; 6.8-86 Nm rated and 24-229 Nm peak torque at only 0.38-1.6 kg, +/-180 deg output and 13 arcsec repeatability, providing high torque density for humanoids and lightweight arms.
SPINEA (Slovakia, now part of Timken) is the global benchmark for trochoidal (cycloidal) precision reduction gears. TwinSpin integrates a high-precision reduction mechanism with a high-capacity radial-axial output bearing in one unit: zero backlash, lost motion under 1 arcmin, average transmission error +/-18 to +/-36 arcsec. The cylindrical-case T series spans TS 60-TS 300 (9 sizes) with ratios 33-191, rated torque 37-2,940 N-m, emergency-stop capacity up to 14,700 N-m, torsional stiffness to 680 N-m/arcmin and tilting stiffness to 3,500 N-m/arcmin at only 0.86-55.7 kg; the load mounts directly on the output flange without extra bearings. Used in robotics, machine tools, medical, defense and automation.
