WALTER MOTOR SERVICE CENTER
Frequently Asked Questions
Find clear answers about WALTER motor products, model selection, torque matching, order process, installation, warranty and after-sales support. This page is designed for importers, distributors, curtain makers, shutter producers and project buyers.
Best use of this page: use this guide before model selection, quotation, sampling, OEM packaging or after-sales support. For exact matching, please share tube size, application, torque request, voltage, control method and order quantity.
01
Selection
Torque, diameter, speed, voltage and application matching.
02
Ordering
Samples, MOQ, lead time, payment and shipping.
03
Installation
Limit adjustment, wiring, tube fitting and accessories.
04
Support
Warranty, troubleshooting, replacement parts and technical help.
Service questions answered from real manufacturing experience
WALTER MOTOR is not only answering general product questions. Our team supports customers through product matching, sample confirmation, production control, shipment preparation and after-sales analysis.
Model recommendation based on application and load
Accessory matching for tube, crown and drive wheel
OEM label, packaging and project support
Warranty review with label, barcode, photos and videos
Material and component control
Stable products start from material review, dimensional control and consistent component quality.
Manufacturing capability
Production equipment and process control help support long-term supply for global customers.
Technical support
Questions about torque, voltage, limits, smart control and installation can be checked before ordering.
Basic Questions
1. What is a motorized roller system?
It is an electric drive system installed inside or connected to a roller tube. It rotates the tube to move roller shutters, blinds, awnings, screens, projection screens or similar products up and down.
2. What is a tubular motor?
A tubular motor is a compact electric motor installed inside a round or octagonal tube. It is commonly used for roller shutters, roller blinds, awnings, projection screens and other rolling systems.
3. How does the drive system work?
The internal stator and rotor create rotation, the gearbox reduces speed and increases torque, and the output adapter transfers movement to the tube. Limit settings control the upper and lower stop positions.
4. Which applications are suitable?
Common applications include roller shutters, roller blinds, awnings, zip screens, garage doors, projection screens, pergolas and sunshade systems. The correct model depends on load, tube diameter and use environment.
5. What is the difference between AC and DC models?
AC models are widely used for mains-powered shutters and awnings. DC models are often selected for low-voltage, battery, solar or smart indoor systems where quiet operation and low energy consumption are important.
Selection and Technical Matching
6. How do I choose the correct torque?
Torque should be selected according to curtain weight, tube diameter, friction, installation angle and safety margin. As a simple reference:
| Application | Common range | Typical choice |
|---|---|---|
| Small roller blinds | 0.8–1.5 Nm | 25 mm or small DC models |
| Medium blinds | 3–6 Nm | 35 mm models |
| Roller shutters | 10–50 Nm | 45 mm models |
| Heavy doors or shutters | 60 Nm and above | 59 mm models |
For final selection, keep some torque margin instead of choosing the minimum value.
7. Is higher torque always better?
No. Oversizing may increase cost, noise and energy use. The best choice is a balanced model that matches the load, tube size and expected daily cycles.
8. How do I choose motor diameter?
The drive diameter must fit the roller tube. Common choices are 25 mm for small shades, 35 mm for standard blinds, 45 mm for shutters and awnings, and 59 mm for heavy-duty systems.
9. What speed should I select?
For roller shutters, 9, 12, 15 or 17 rpm are common. For awnings and pergolas, 12–15 rpm usually gives smoother movement. Faster speed is not always better if the system is heavy.
10. What control options are available?
Options include wall switch, mechanical limit, electronic limit, built-in receiver, remote control, Wi-Fi, Zigbee, app control and smart home integration depending on the selected model.
11. Can one model be used for different applications?
Sometimes yes, but not always. A light blind and a heavy shutter have very different load requirements. We recommend confirming application, tube size and curtain weight before ordering.
Ordering, Samples and Delivery
12. What information is needed for a quotation?
Please provide model or application, torque, speed, voltage, tube size, control method, quantity, packaging request, destination port and any certification or private label requirements.
13. Can I order samples before bulk production?
Yes. Sample orders are available for quality checking, dimension confirmation, tube matching and performance testing before mass production.
14. What is the standard MOQ?
For standard models, small trial orders can usually be discussed. For OEM labels, special color, custom packaging or non-standard accessories, MOQ depends on materials and production setup.
15. How long is production lead time?
For regular orders, production is often around 25–30 days after payment and order confirmation. Customized orders may need additional time for artwork, samples, tooling or material preparation.
16. Do you provide OEM or ODM service?
Yes. WALTER supports logo printing, private label packaging, accessory matching, model selection, technical adjustment and project-based development for distributors and manufacturers.
17. Which ports do you ship from?
For sea shipment, Shanghai and Ningbo are commonly used. For air shipment or courier delivery, Shanghai and Hangzhou are typical options depending on schedule and destination.
18. How many pieces fit in a 20 ft container?
The loading quantity depends on model size, carton design and accessory packaging. For 20 Nm shutter models with master cartons, around 8,000 pcs is normally safer for loading, while higher quantities may be possible with optimized packing.
Installation and Use
19. Can I install the product myself?
Professional installation is recommended, especially for shutters, awnings, outdoor systems and high-torque products. Incorrect wiring, tube fitting or limit adjustment can damage the system.
20. What is a limit switch?
A limit switch controls the upper and lower stop positions. Mechanical limits are adjusted manually, while electronic limits are programmed and can provide more precise control on selected models.
21. Why does tube diameter matter?
The tube must match the crown and drive wheel. If the fit is too loose, movement may be unstable; if too tight, assembly becomes difficult or parts may wear faster.
22. Are quiet options available?
Yes. Small-torque indoor models can be selected for lower noise. Actual sound level depends on motor type, tube structure, installation quality and surrounding space.
23. Can the same product be used indoors and outdoors?
Some models can be used outdoors if the system design provides suitable protection. For outdoor use, confirm IP rating, cable direction, water exposure, wind load and installation environment.
Warranty and After-Sales Support
24. What is the warranty period?
Standard mechanical models are normally covered by a 5-year warranty against manufacturing defects, unless a different agreement is confirmed for a specific project or product type.
25. What is not covered by warranty?
Misuse, incorrect installation, overload, water damage caused by improper protection, unauthorized modification, incorrect wiring and damage during customer handling are generally excluded.
26. How do I submit a claim?
Please provide order information, barcode or label photo, failure description, installation photos and short videos where possible. We will check whether the issue is related to materials, production or application conditions.
27. Can faulty units be repaired or replaced?
Yes. Depending on the confirmed cause, we may provide repair guidance, replacement parts, credit arrangement or replacement units in a future shipment.
28. Do you provide testing reports before shipment?
Yes. Functional testing, torque testing, visual inspection and packing checks can be provided when required. Please confirm inspection requirements before production.
Company and Product Support
29. Who is Zhejiang Walter Mech Electrical Co., Ltd.?
Zhejiang Walter is a China-based manufacturer focused on motorized shading and shutter drive products. The company has long-term production experience, OEM/ODM capability and export service for global customers.
30. What products do you specialize in?
Main products include roller shutter motors, roller blind motors, awning motors, battery motors, smart control motors, receivers, remotes, brackets, crowns, drive wheels and related accessories.
31. What certifications are available?
Depending on model and market, product documentation may include CE, TUV, SAA, RoHS or other test information. Please confirm the destination market before ordering.
32. Why choose WALTER for long-term supply?
WALTER combines model range, production experience, accessory matching, quality control, technical service and export support. This helps customers reduce selection mistakes and maintain stable supply.
33. Can I visit the factory?
Yes. Factory visits are welcome by appointment. Online factory meetings can also be arranged when customers cannot visit in person.
Need help selecting the right model?
Send us your application, tube size, curtain weight, voltage, control method and target quantity. Our team can recommend a suitable motor, accessory set and quotation plan.