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Siemens 1FK7040-2AK71-1QB0 SIMOTICS S 1FK7-CT 1.6 Nm 6000 rpm Servo Motor

% $-1,475.45
Siemens 1FK7040-2AK71-1QB0 1FK7-CT servo motor - 1.6 Nm, holding brake
Siemens 1FK7040-2AK71-1QB0 1FK7-CT servo motor - 1.6 Nm, holding brake

Siemens 1FK7040-2AK71-1QB0 SIMOTICS S 1FK7-CT 1.6 Nm 6000 rpm Servo Motor

Brand: Siemens
Reference No: 1FK7040-2AK71-1QB0
Catalog No: 1FK7040-2AK71-1QB0
Series: SIMOTICS S
Tariff Code (HS): 85015100
Rated Current: 1.9
Power: 0.69 kW
Communication: DRIVE-CLiQ
Stock: 0
Delivery time: 10-15 business day(s)
Shipping Origin: Türkiye EXW
$1,475.45

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  • Description

Siemens 1FK7040-2AK71-1QB0 SIMOTICS S 1FK7-CT servo motor delivers 1.6 Nm standstill torque and 0.69 kW rated power at 6000 rpm on a 600 V DC link. It is an 8-pole design with 1.9 A rated current, IP64 protection, a 20-bit single-turn absolute encoder (AS20DQI) with a DRIVE-CLiQ interface, and an integrated holding brake.

Technical Specifications

SKU 1FK7040-2AK71-1QB0
Brand Siemens
Series SIMOTICS S
Number of Poles 8
Rated Current 1.9 A
Moment of Inertia 1.920 kgcm²
Efficiency 88.0 %
Torque Constant 0.68 Nm/A
Voltage Constant at 20°C 43.4 V/1000 min⁻¹
Winding Resistance at 20°C 2.87 Ω
Rotating Field Inductance 16.5 mH
Electrical Time Constant 5.70 ms
Mechanical Time Constant 3.00 ms
Thermal Time Constant 25 min
Shaft Torsional Stiffness 13,000 Nm/rad
Net Weight of the Motor 3.9 kg
Shaft Height 48 mm
Cooling Natural cooling
Radial Runout Tolerance 0.040 mm
Concentricity Tolerance 0.08 mm
Axial Runout Tolerance 0.08 mm
Degree of Protection IP64
Color of the Housing Standard (Anthracite RAL 7016)
Encoder Single-Turn 20 bits
Optimum Speed 6,000 rpm

Selection Notes

This is the holding-brake version of the 1FK7040-CT frame: the brake raises rotor inertia to 1.920 kgcm² and lowers shaft torsional stiffness to 13,000 Nm/rad compared with the non-brake motor in the same frame, though stiffness still exceeds the smaller 36 mm-frame motors in this range. Choose it for vertical or gravity-loaded axes at this higher torque-and-speed class that must hold position without drive power; for horizontal axes the non-brake version responds faster due to its lower inertia.

Applications

1.6 Nm at 6000 rpm with a holding brake and the 48 mm frame's higher torsional stiffness suits vertical Z-axis drives and heavier gravity-loaded axes in machine-tool and packaging equipment where the load must not drop on power loss.

Technical Details

Short Description
Siemens 1FK7040-2AK71-1QB0 1FK7-CT servo motor, 1.6 Nm, 0.69 kW at 6000 rpm, holding brake, IP64, DRIVE-CLiQ 20-bit absolute encoder.
Rated Current (Ampere)
1.9
Mounting Type
Flange
Protection Type
IP64
Catalog No
1FK7040-2AK71-1QB0
Power (kW)
0.69 kW
Delivery Date (Days)
10-15 days
Model Number
1FK7040-2AK71-1QB0
Tariff Code
85015100

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