42mm NEMA stepper motor

Description

This is a NEMA 17 42mm diameter hybrid stepper motor.

We have: 20mm, 28mm, 35mm, 39mm, 57mm, 60mm, 86mm, 110mm, 130mm in addition to 42mm diameter, these motors can be matched with gearboxes.

Motor height: 25mm, 28mm, 34mm, 40mm, 48mm, 60mm, the higher the motor height, the higher the torque, customers choose according to their needs.

Application areas are also wide, such as: robots, industrial electronic automation equipment, medical equipment, advertising equipment, printing equipment, textile machinery and so on

At present, we have exported to more than 20 countries such as USA, Germany, Italy, Spain, UK, Mexico, Brazil, etc.

If you are interested in our products, please feel free to contact us.

Parameters

Above parameters are standard products for reference, motor can be customized based on customer’s requirement.

Design drawing

Basic structure of NEMA stepper motors:

Customisable

There are three types of this motor: externally driven, fixed, and through-shaft.

Shaft customisation: round shafts, screws and screw lengths, nuts can all be customised

Gear customisation: customised gears on round shafts are available on request

The through-axis can be manually adjusted by adding a hand nut.

Encoder can be added to the end of the motor

External drive can add gearbox

About lead screw:

The lead screw used on linear hybrid stepper motor is in general trapezoidal lead screw.

For example for Tr3.5*P0.3*1N lead screw.

Tr means trapezoidal lead screw type P0.3 means lead screw’s pitch is 0.3mm 1N means it’s single start lead screw.

Lead screw lead=start number*pitch.

So for this specific lead screw, it’s 0.3mm lead.

Motor’s stepper angle of hybrid stepper motor is 1.8 degrees/step, which takes 200 steps to rotate one turn.
Step length is linear movement the motor makes, when it takes one single step.

For a 0.3mm lead screw, step length is 0.3mm/200 step=0.0015mm/step

About Hybrid Stepper Motor Selection

Customers should follow the principle of “selecting stepper motors first, then select driver based on existing stepper motor”

It is best not to use the full-step driving mode to drive a hybrid stepping motor, and the vibration is bigger under full-step driving.

Hybrid stepper motor is more suitable for low-speed occasions. We suggest the speed does not exceed 1000 rpm (6666PPS at 0.9 degrees), preferably between 1000-3000PPS (0.9 degrees), and it can be attached with a gearbox to lower it’s speed.

The motor has high working efficiency and low noise at suitable frequency.

Due to historical reasons, only the motor with a nominal 12V voltage uses 12V. Other rated voltage on design drawing is not exactly the most suitable driving voltage for the motor. Customers should choose suitable driving voltage and suitable driver based on own requirement.

When the motor is used with high speed or large load, it generally does not start at the working speed directly.

We suggest to gradually increases the frequency and speed. For two reasons: First, the motor does not lose steps, and second, it can reduce noise and improve the positioning accuracy.

The motor should not work in the vibration area(below 600 PPS ). If it must be used at slow speed, vibration problem could be reduced by changing the voltage, current or adding some damping.

When the motor works below 600PPS (0.9 degrees), it should be driven by small current, large inductance and low voltage.

For loads with a large moment of inertia, a large size motor should be selected.

When higher precision is required, it could be solved by adding gearbox, increasing the motor speed, or using subdivision driving.

Also a 5-phase motor(unipolar motor) could be used, but the price of the entire system is relatively expensive, so it’s rarely used.

Stepper motor size:
We currently have 20mm(NEMA8), 28mm(NEMA11), 35mm(NEMA14), 42mm(NEMA17), 57mm(NEMA23), 86mm(NEMA34) hybrid stepper motors. We suggest to determine motor size first, then confirm other parameter, when you select a hybrid stepper motor.

Application

Due to high resolution of hybrid stepper motor’s (200 or 400 steps per revolution), they are widely used for applications requiring high precision, such as:3D printing、Industrial control(CNC, automatic milling machine, textile machinery)、Computer peripherals、Packing machine、And other automatic systems requiring high precision control.

Lead Time

If we have samples in stock, we can ship out samples in 3 days.

If we do not have samples in stock, we need to produce them, production time is about 20 calendar days.

For mass production, lead time depends on order quantity.

Payment method and payment terms

For samples, in general we accept Paypal or alibaba.

For mass production, we accept T/T payment.

For samples, we collect full payment before production.

For mass production, we can accept 50% pre-payment before production, and collect the rest 50% payment before shipment.

After we cooperate order more than 6 times, we could negotiate other payment terms such as A/S (after sight).