Description

Product Overview

The WINGREEN 034STM4-00-200-RS is a two-phase hybrid stepper motor manufactured by WINGREEN of South Korea. Specifically, it is an integrated model with a planetary gearbox. It precisely integrates a high-precision stepper motor with a high-efficiency planetary gearbox, aiming to provide a high-torque, high-precision, and low-vibration motion control solution. This model is particularly suitable for automated equipment that requires high output torque and precise positioning in a compact space.

Core Features and Value

The core value of this product lies in the high torque density and system simplification achieved through its integrated design. Through the built-in planetary gearbox, it converts the high-speed, low-torque motion of the motor shaft into low-speed, high-torque motion at the output shaft, eliminating the need for users to select and install an external gearbox. This greatly simplifies mechanical structure design, saves installation space, and ensures optimal matching and long-term reliability between the motor and gearbox, making it an ideal drive component for precision transmission applications. Technical Parameters

Parameter Category

Specific Description

Product Model

034STM4-00-200-RS

Manufacturer

WINGREEN (Wingreen Co., Ltd., South Korea)

Product Type

Hybrid Stepper Motor (with integrated planetary gearbox)

Motor Body Dimensions

Square flange size 34mm x 34mm (corresponding to NEMA 14 standard frame size)

Step Angle

1.8° (200 steps/revolution) — This is the standard step angle for two-phase stepper motors

Rated Current

Typically in the range of 0.4A to 1.0A, please refer to the detailed specifications (defined by the code in -00)

Number of Phases

2 phases

Number of Leads

Typically 4-wire or 6-wire (the code in -00 defines the specific connection method)

Holding Torque

Motor body holding torque is approximately 0.2 N·m (20 N·cm) (typical value for 034 size)

Gearbox Model

RS represents an integrated planetary gearbox

Gear Ratio

The “200” in the model likely refers to a gear ratio of 20:1 (common coding, 200 represents 20.0:1)

Output Shaft Type

Usually straight shaft, keyway, or smooth shaft; specific type requires referring to the drawings

Output Shaft Torque

Output torque after reduction ≈ Motor holding torque × Gear ratio × Transmission efficiency. Estimated output torque is approximately 3.6 N·m, assuming a 20:1 gear ratio and 90% efficiency.

Features

Compact structure, low backlash, high transmission efficiency, smooth operation.

Application Scenarios

Scenario: Precision dispensing equipment or small desktop robots

In 3C electronic product assembly lines, micro-volume, high-precision dispensing of chips or components is required. The WINGREEN 034STM4-00-200-RS motor is used to drive the Z-axis lifting of dispensing valves or the precise movement of X-Y platforms.

Its built-in 20:1 planetary gearbox plays a crucial role: firstly, it amplifies the motor’s output torque by approximately 20 times, allowing the compact NEMA 14 body to output sufficient power to smoothly and stably drive the load, overcoming friction and inertia during movement. Secondly, the gearbox effectively reduces the rotational inertia of the load when translated to the motor shaft, making the system easier to control and reducing jitter and overshoot. Finally, the inherent low backlash characteristics of the planetary gearbox ensure high repeatability. This solution perfectly addresses the core contradiction in small automation equipment: the need for both small installation space and sufficient output power and precise positioning.

Technical Advantages and Innovative Value

High Torque Density and Space-Optimized Design

The innovation of the 034STM4-00-200-RS lies in the highly integrated and modular design of the stepper motor and planetary gearbox. Compared to traditional separate “motor + coupling + external gearbox” solutions, it achieves a significant increase in torque output with a similar axial length, saving the radial space and installation time required for the coupling. This integrated design allows equipment designers to achieve stronger driving capabilities in a more compact layout, especially suitable for miniaturized, high-density automation equipment where space is extremely limited.

High Transmission Accuracy and Smooth Operation

The integrated planetary gear reducer typically uses high-precision gears and optimized tooth profiles, featuring low backlash. This means that when the motor changes its direction of rotation, the output shaft responds with almost no delay, greatly improving the system’s repeatability. At the same time, the smooth transmission characteristics of the gearbox effectively filter out slight vibrations during low-speed pulsed operation of the motor, making the output shaft run more smoothly and quietly, improving the performance and lifespan of the entire motion mechanism. High Reliability and Simplified System Integration

As a product of integrated design and manufacturing by the original manufacturer, the motor and gearbox’s coaxiality, sealing, and lubrication are optimized, ensuring long-term operational reliability and avoiding problems such as misalignment and oil leakage that can occur with separate installations. For equipment manufacturers and end-users, this means fewer components to purchase, simpler inventory management, faster assembly processes, and lower risk of failure. It provides a “plug-and-play” high-performance motion axis solution.

Industry Application Case

Case: Automated Microscope Stage Scanning System Upgrade

A life science instrument company needed to upgrade the automated stage of its fluorescence microscope, requiring fast movement speed, micron-level positioning accuracy, and no significant vibration to avoid affecting imaging. They chose the WINGREEN 034STM4-00-200-RS as the drive motor for both the X and Y axes.

Implementation and Value:

Meeting Accuracy and Smoothness Requirements: The motor’s 1.8° step angle, after 20x reduction, results in a theoretical output shaft step angle of 0.09°. Combined with a precision ball screw, this achieves sub-micron positioning resolution. The low backlash characteristics of the planetary gearbox ensure accurate positioning of the scanning grid.

Providing Sufficient Driving Force: The amplified torque easily drives the stage for smooth acceleration and deceleration, quickly moving to the predetermined shooting positions.

Simplified Mechanical Design: The integrated motor is directly mounted on the platform base via a flange, resulting in a very simple structure, saving valuable optical path space, and operating with minimal vibration, meeting the stringent requirements of optical imaging.

Results: The new stage improved positioning accuracy and repeatability by more than 50% compared to the old model (using an open-loop motor + timing belt), increased scanning speed by 30%, and operated more quietly and reliably, significantly improving the efficiency and success rate of high-content screening experiments.

Supporting Solutions

Matching Stepper Driver: A microstepping driver capable of driving a two-phase stepper motor is required, such as a driver based on the TB6600. DRV8825. or a more advanced chip. The drive must be able to provide the rated current required by the motor and be set with an appropriate microstepping resolution (e.g., 16. 32. 64 microsteps) to achieve smoother operation and higher positional resolution.

Motion controller: This can be a PLC pulse output module, a standalone motion control card, or an embedded controller, used to generate pulse and direction signals to control the motor’s speed and position.

Mechanical connectors: Couplings matching the motor output shaft are used to connect to lead screws, timing pulleys, or other loads. Appropriate mounting brackets are also required.

DC switching power supply: Provides a stable DC power supply to the stepper driver. The voltage should be selected based on the driver and motor current requirements (commonly 24V, 36V, 48V DC).

Limit and home sensors: Photoelectric or magnetic proximity switches are used to establish the reference origin of the motion mechanism and prevent overtravel.

Installation, Commissioning, and Maintenance Support

Installation and Commissioning

Mechanical installation: Ensure the motor mounting surface is flat and clean. Tighten the mounting screws evenly in a diagonal sequence to the specified torque to avoid motor shaft deformation or bearing damage due to installation stress. Connect the load through a flexible coupling and carefully adjust the coaxiality of the motor shaft and the load shaft.

Electrical connection: Refer to the motor nameplate or specifications to correctly identify the four leads of the motor windings (A+, A-, B+, B-) and connect them strictly to the output terminals of the driver. Incorrect wiring may lead to weak motor power, vibration, or even damage to the driver.

Driver parameter settings: Set the driver current to the same or slightly lower value than the motor’s rated current (e.g., 80% of the rated value to reduce heat). Set the microstepping resolution according to application requirements (precision vs. high speed). Initially, a lower microstepping resolution (e.g., 8 or 16) can be used for testing.

Trial run and optimization: Start the motor at a low speed and observe whether the operation is smooth and free of abnormal noises. Gradually increase the speed. If vibration or step loss occurs, adjust the driver’s current decay mode, microstepping resolution, or add acceleration/deceleration curves through the controller. Listen to the sound and check the temperature to ensure the motor is operating within the normal range.

Maintenance and Support

Routine inspection: Regularly check the motor operating temperature. A case temperature rise within 70°C is generally acceptable. Listen for any unusual operating noises (sharp noises may indicate bearing or gear problems). Check that all electrical connections are secure.

Common Troubleshooting:

Motor not rotating: Check power supply, enable signal, and pulse signal; check that wiring is correct and secure.

Motor vibration or abnormal noise: Check driver current and microstepping configuration; check if the mechanical load is too heavy or jammed; check for misalignment of the coupling.

Step loss (inaccurate positioning): This may be due to momentary overload, requiring increased torque (current) or reduced acceleration; it may also be due to interference causing pulse loss, requiring checking of shielding and grounding.

Lubrication and Replacement: Integrated motors are usually lubricated for life and require no maintenance. Under extreme or continuous operating conditions, refer to the manual for replacing the gearbox lubricant after several thousand to tens of thousands of hours. The motor itself is not easily repairable; it is usually replaced as a whole unit if damaged.

Professional Services: We provide product selection guidance, system integration consulting, and fault diagnosis services. For batch applications, we can assist with parameter optimization testing to achieve optimal performance.