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25.09.2014 | We invite you to visit our stand at the exhibition "Mashex-2014"!

Get an e-ticket to the exhibition "Mashex-2014"Dear Partners and Clients!

We invite you to visit our stand №C261, hall №3 at the 17th international exhibition of equipment and technologies of metalworking and working of composite materials "Mashex-2014", which will be organized from 28 to 31 October in the exhibition center "Crocus Expo", pavilion №1, Moscow, Russia.

24.09.2014 | We invite you to visit our stand at the exhibition "Stankostroenie-2014"!

Get an e-ticket to the exhibition "Stankostroenie-2014"Dear Partners and Clients!

We invite you to visit our stand №В222 , pavilion №1, hall №2 at the international specialized exhibition "Stankostroenie-2014", which will be organized from 14 to 17 October, 2014 in the exhibition center "Crocus Expo" (Moscow, Russia).



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Stepper motors of ZK28HS series


Two-phase hybrid stepper motors of ZK28HS series with the high torque are used in computed tomography, biochemical analyzers, hematology analyzers and other medical equipment, and communication devices. Characterized by a high accuracy, low inertia moment and small size.

Lineup of ZK28HS series

 Model
Rated voltage, V Current/phase, A Resistance/phase, Ohm Inductance/phase, mH Holding torque, kg×cm Number of leads Number of phases Rotor inertia, kg×m2 Weight, kg Length, mm
ZK28HS28-0804A  2.0 0.80 2.5 1.6 0.45 4 2 8.0×10-7 0.095 28
ZK28HS45-0504A  3.4 0.50 6.8 4.8 0.75 4 2 12.0×10-7 0.14 45
ZK28HS51-0804A 4.0 0.80 4.9 3.3 1.0 4 2 18.0×10-7 0.18 51

Main technical characteristics of ZK28HS series

Parameter Specifications
Step angle
1.8°
Step angle accuracy
±5% (full step, no load)
Resistance accuracy
±10%
Inductance accuracy
±20%
Temperature rise 80°C max. (rated current, 2 phase on)
Ambient temperature -20°C ~ +50°C
Insulation resistance 100 MOhm min., 500 VDC
Dielectric strength 500 VAC for one minute
Radial play 0.02 mm. max. (450 g-load)
Axial play 0.08 mm. max. (450 g-load)
Radial force 28 N max. (20 mm. from the flange)
Axial force 10 N max.
Holding torque 0.45 ~ 1.0 kg×cm
Current/phase
0.5 ~ 0.8 А

Ordering information for ZK28HS series

ZK 28 HS 28 - 050 4 A
ZK - stepper motor Flange size Motor type Motor case length Current per phase Number of leads Shaft type
  28 28 mm HS with high torque 28 28 mm
45 45 mm
51 51 mm
050 0.5 А
080 0.8 А
4 4 leads A single

Dimensions of ZK28HS series

Wiring diagram