Description
- DOBOT MG400 Robotic Arm
- Offers a lightweight, user-friendly desktop robot
- Provides multiple controls for beginners & professionals
- Equipped with servo motors
- Produce repeatability up to ±0.05 mm
- Open ecosystem for compatibility, expandability & scalability
- Compatible with a range of other technologies
The DOBOT MG400 Robotic Arm is a lightweight desktop robot with a footprint smaller than a piece of A4 paper. Engineered to be lightweight, user-friendly, and safe, MG400 can be easily integrated into any production line or lab bench, making it universally accessible and affordable.
Commercially Available Industrial-Grade Performance
Professional Hardware: MG400 has a controller design based on Linux real-time system, and makes use of the most advanced 1-to-4 servo drive technology.
High Precision: All axes use low-voltage DC servo motors with high-precision absolute position encoders and mechanical transmission parts with low backlash. All these put MG400 in a superior position to produce repeatability up to ±0.05mm.
Born for Desktop Application Scenarios
MG400 is designed with small-scale production in mind. With a 190 x 190 mm (7.48 x 7.48 inches) footprint, the robot is lightweight enough to carry in a backpack and compact enough to sit on a desk or workbench as well as alongside an existing production line or cell, offering you full flexibility across your business.
Inherently Safe: So Gentle It Can’t Even Hurt a Balloon
With safety as its core, MG400 adopts an advanced collision detection algorithm with a collision force threshold less than 12N. The robot stops immediately when it touches an obstacle, putting it in the same league as the world’s best robots.
Vibration Suppression Algorithm: Fulfill Tasks Smoothly & Steadily
The adopted vibration suppression algorithm increases repeatability bandwidth stability by 60% and reduces residual vibration by 70% without affecting the space trajectory accuracy of multi-axis motion. This means that the robot’s tool will move more steadily without jittering, ensuring smooth execution of tasks.
TrueMotion Algorithm for Applications Requiring High-Accuracy Trajectory
MG400 leverages TrueMotion Algorithm, a DOBOT-developed technology featuring speed planning and dynamic algorithm. This allows the robot to deliver accurate trajectories at stable speeds, thus excelling in tasks like dispensing.
Teaching MG400 is as Easy as Moving Your Own Hand
With the dynamic gravity compensation algorithm adopted in the robot, first-time users can effortlessly move the robot wherever they like. MG400 will be able to move to these taught with best-in-class precision.
Multiple Controls for Beginners & Professionals
MG400 is programmable through teaching and playback, block program, and LUA scripting, suitable for beginners with no programming experience and veteran programmers alike.
10 Minutes to Get MG400 Up and Running
Install the robot on your workbench, plug-in power, and connect to your PC using an Ethernet cable or to your tablet via Wi-Fi. Lastly, open up our software and the MG400 is ready to go.
Open Ecosystem for Compatibility, Expandability & Scalability
MG400 is compatible with a range of other technologies, making it suitable for advanced and complex applications. With the support of TCP/IP and MODBUS TCP, the robot can be connected to a wide range of technologies.
- 1 x DOBOT MG400 Robotic Arm
PDF File
- Controlled Axes: 4
- Repeatability: ±0.05 mm
- Power Input: 100-240 VAC, 50/60 Hz
- Rated Voltage: 48 V
- Rated Power: 240 W
- Communication: TCP/IP, Modbus TCP
- Installation: Desktop
- Work environment: 0 ~40 °C
- Software: DobotStudio 2020, SCStudio
- Max. Load: 500 g (Max. 750 g)
- Weight: 8 kg
Joint (Ranges)
- J1: ±160°
- J2 -25° ~ 85°
- J3 -25° ~ 105°
- J4 -180° ~ 180°
Joint (Maximum Speed)
- J1: 300 °/s
- J2: 300 °/s
- J3: 300 °/s
- J4: 300 °/s
Interface (Base)
- Digital Input: 16
- Digital Output: 16
- Ethernet: 2
- USB 2.0: 2
- Encoder Input: 1
Interface (End)
- Digital Input: 2
- Digital Output: 2
- Airway: 1
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Refund Policy
If you are not satisfied with a product purchased from the Site, you may request a return within 30 days from the delivery date, unless the product is listed under the Return Exceptions below or is subject to specific return conditions noted on the product page.
This return policy also applies, as a minimum standard, to products sold and fulfilled by third-party vendors through the Marketplace.
Please review the Return Conditions, Return Exceptions and the process on How to Request a Return Authorisation (RA) before initiating a return request.
United Kingdom consumers exercising their statutory Right of Cancellation are subject to different conditions. See the Statutory Right of Cancellation.
Returns under this policy concern non-defective products. In the case of a confirmed manufacturing defect, remedies are handled under the Warranty terms, at the Vendor's discretion. See the Warranty section.
Return Conditions
To qualify for a refund under the 30-day return policy, all of the following conditions must be met:
- A valid Return Authorisation (RA) number must be obtained prior to returning the product. Returns without an RA number will be refused.
- The RA number is valid for 30 days. The returned item must be received within that period.
- The RA number must be included with the return.
- Products must be returned in unused, unmodified condition (e.g., no scratches, alterations, missing parts, or signs of installation/use) and in their original packaging, suitable for resale.
- Shipping fees are non-refundable. Return shipping costs are the responsibility of the customer, except in cases of a product confirmed defective through RobotShop's troubleshooting process or of a verified shipping error by RobotShop.
- Refunds are processed within 7 days after receipt and inspection of the returned item.
- A £100 cleaning fee may apply to domestic robots returned in used or unclean condition.
- A 20% restocking fee may apply to large-quantity returns of items ordered specifically for the customer from the manufacturer or not part of RobotShop's standard inventory.
Return Exceptions
The following products are not eligible for return or refund under this policy:
- Used, damaged, or modified products — Items that show signs of use, wear, or alteration, making them unsuitable for resale.
- Consumables * — Use and wear-and-tear components, altered or depleted through use (e.g., batteries, belts, brushes, gears, filament, tyres, disposable bags, lubricants, greases, waxes, etc.). Not eligible for return once opened or used.
- Perishables — Goods liable to deteriorate or expire rapidly. Not eligible for return.
- Sealed goods (health or hygiene) — Items sealed for health-protection or hygiene reasons (e.g., masks, gloves, odour-absorbing products). Not eligible for return once unsealed.
- Build-it-yourself products and items requiring customer assembly * — Including robots & kits, robot parts, and other products requiring assembly or soldering. Not eligible for return once assembled, soldered, or installed.
- Digital Goods, Software, and Apps * — Final sale only, due to licensing restrictions.
- Clearance Items * — Products identified as clearance or final sale, including end-of-life or discontinued items.
- Custom-made, personalized, or special-order items — Products manufactured, configured, adapted, or built to the customer's own specifications and requirements.
- On-Demand Items * — Standard catalogue products not stocked by RobotShop and ordered specifically to fulfil a customer request.
- Professional & Specialized Equipment — See the Professional & Specialized Equipment Warranty page and Professional & Institutional Buyers (B2B) section in the Terms & Conditions.
* United-Kingdom consumers retain their statutory Right of Cancellation on these items. Its exercise is subject to the conditions and exclusions set out in the Statutory Right of Cancellation, and any reimbursement may be reduced to reflect a loss in value resulting from handling beyond inspection.
How to Request a Return Authorisation (RA)
While the same return policy applies, these orders require a separate contact process for returns.
- RobotShop Fulfilled Orders → submit a support ticket from your account under My Support Tickets.
- Marketplace Vendor Orders → submit a ticket from your account under My Marketplace Tickets to contact the vendor directly.
Note: Marketplace vendor products are normally labelled with SKUs starting with RM, and identified on the product page with the mention "Sold and fulfilled by [Vendor Name]".






