R43HCNA-NP-RW-VS-02
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The Pacific Scientific R43HCNA-NP-RW-VS-02 belongs to the R Servomotors series and features a hydraulic cylinder design. It has a bore size of 43mm and operates with a maximum pressure of 250 bar. The cylinder is constructed of steel, features adjustable cushioning, and is equipped with nitrile (NBR) seals for durability.
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Product Description:
The R43HCNA-NP-RW-VS-02 is a brushless servo motor from the R40 series built by Pacific Scientific, within a 4.25-inch frame. It has a rare earth samarium cobalt magnetic rotor to allow high torque-to-inertia performance across its full speed range. This motor features a NEMA face mounting option and its total weight without brake is 6.8 kg.
The R43HCNA-NP-RW-VS-02 motor delivers a continuous stall torque of 3.7 Nm and its peak torque reaches up to 15.2 Nm. Its torque constant is 0.61 Nm/A and a back EMF of value 0.61 V/rad/s. This motor uses a continuous stall current of 6.9 A and its peak current goes up to 53 A under full load conditions for a brief time. The R43HCNA motor possess 2.5 Ohms cold and 3.7 Ohms hot resistance along with a line-to-line inductance specified at 13.3 mH, to support stable operation under continuous duty cycles. It comes with an anti-cog design, MS terminal connector and a Viton shaft seal to meet the IP65 water protection standards, while the seal requires periodic lubrication for long-term performance. This motor has a moment of inertia 0.00020 kg·m² and its static friction is rated at 0.029 Nm. It offers a viscous damping value of 0.011 Nm/Krpm and the thermal resistance of this R43HCNA motor is 0.72 °C/W.
The R43HCNA-NP-RW-VS-02 motor takes 19 minutes under specified mounting conditions to dissipate heat and maintain ambient temperature through its 10” x 10” x 1/4” aluminum heat sink. It has no primary feedback device installed but secondary feedback is supported if the need arises. The R43HCNA motor lacks a holding brake in the initial assembly, though it supports an optional 8.1 Nm static torque brake system that operates on 24/100 VDC.
Frequently Asked Questions about R43HCNA-NP-RW-VS-02:
Q: What is the benefit of using a samarium cobalt magnet rotor in the R43HCNA-NP-RW-VS-02 motor?
A: The samarium cobalt rotor provides higher torque density and excellent thermal stability. This allows consistent motor performance in demanding temperature environments.
Q: Why does the R43HCNA-NP-RW-VS-02 have a high peak current rating of 53 A?
A: The high peak current supports short bursts of acceleration or heavy load conditions. This is critical in dynamic industrial automation applications.
Q: How does the anti-cog design improve the R43HCNA motor's performance?
A: The anti-cogging design minimizes torque ripple during low-speed operation. It ensures smoother motion and precise control in servo applications.
Q: What advantage does the Viton shaft seal provide in the R43HCNA-NP-RW-VS-02?
A: The Viton seal offers chemical resistance and high-temperature tolerance. It helps maintain the motor’s IP65 protection in industrial environments.
Q: Why is a 10” x 10” x 1/4” aluminum heat sink recommended for this motor?
A: The specified heat sink enables effective thermal dissipation, maintaining optimal performance. It reduces the chance of thermal shutdown during extended duty cycles.
