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Porte sectionnelle
SEPPES Products
Porte sectionnelle
Sectional Door Solutions
Engineered for Extreme Durability and Efficiency
Sectional door, also known as ”sectional overhead door”, typically composed of multiple panels that open and close vertically. Our sectional doors feature high-density polyurethane foam panels, providing thermal insulation and impact resistance—perfect for industrial applications. With quick open/close features, they help optimize warehouse efficiency, save space, and maintain high safety standards.
Built to endure, industrial sectional doors are impact-resistant, wind-resistant, and engineered for long-term, stable performance—even in the most demanding settings. This durability translates to reduced maintenance costs and uninterrupted operations. Ideal for industrial applications, our energy-efficient doors are crafted to withstand high-frequency use, ensuring reliability and performance day in and day out.





More Details Of Sectional Overhead Door Structure

Industrial Sectional Door
- 1. Vertical guide rail
- 2. Vertical side frame
- 3. Door shaft
- 4. Torsion spring fracture protection device
- 5. Sheave
- 6. Torsion spring sleeve
- 7. Balance spring mechanism (torsion spring)
- 8. Coupling
- 9. Inner bracket
- 10. Top roller bracket
- 11. Roller bracket
- 12. Big back muscles (optional)
- 13. Wire rope break protection device
- 14. Sandwich door panel
- 15. Inner hinge
- 16. Bottom aluminum profile and bottom sealing strip
- 17. Side seal
- 18. Top aluminum profile
- 19. Top sealing strip
- 20. Panel side cover with fixing holes
- 21. Step handle
- 22. End buffer
- 23. Ceiling mounting bracket
Types of Commercial & Industrial Overhead Doors
In different operating environments, choosing the right type of loading bay doors is crucial to improving efficiency and ensuring safety. According to different designs and functions, loading bay doors can be divided into several types, each type is adapted to specific needs and environments.
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More Custom Styles For Commercial Sectional Doors
Autres équipements optionnels de composants renforcés : Plus durable et plus sûr

Small Window
The special design of the windows (dimensions 600×300mm) provides communication between indoor and outdoor, thus increasing the indoor lighting. The sectional door windows are made of high-strength acrylic panels.

Door Panel Colors
We offer sectional door color customization service with the option to customize your corporate logo or brand color. Not only add personality to your factory and business, but also harmonize the overall appearance.

Paint Material
The sectional overhead door can be equipped with a baking varnish material (standard configuration is galvanized material) when operating in high humidity conditions to ensure reliable anti-corrosion protection.

Pedestrian Door
The door-in-door is equipped with an interlocking device between the pedestrian door and the large door. When the wicket door is not completely closed, the large door cannot be opened to ensure safe use.
Various Lifting Methods of Sectional Steel Doors
Sectional steel doors can be customized according to the factory environment. It is widely used for its space-saving features, high practicality and high-end appearance.

Standard Lifting
Applicable to door top space: within 200-300mm.

Improve Lifting
Suitable for door top space ≥ door opening height.

Vertical Lifting
It is suitable for the slope shape of the door top ceiling, and the track is parallel to the ceiling

Low Lifting
Suitable for commercial sectional doors top space ≥ 500mm
Installation Guide for Your Sectional Door
All measurements are made indoors and each value must be measured at at least three point: H – the height of the sectional door opening (the distance from the ground to the top of the door opening) B – the width of the door opening (the distance from the left edge of the door opening to the right edge) h – at least 500 mm above the door opening (the distance from the top of the door opening to the ceiling) b1/b2 – requires a lateral distance of at least 150 mm left and right (distance from the corresponding edge of the door opening to the obstacle) L is the depth of the room
When measuring H and B, take the maximum value as the final size
When measuring h, b1, b2 and L, take the smallest value as the final size
Fourniture de services techniques professionnels

Déterminer les besoins
Après avoir compris le produit, la taille, la quantité, le mode de commercialisation et l'utilisation de ces besoins fondamentaux, l'entreprise fournit rapidement des devis et des dessins au client pour qu'il les confirme.

Fournir des services techniques
SEPPES professional technical team will be based on the sectional door information provided by the customer, customised technical solutions and drawings.

Production en usine
Une fois que le client a accepté le plan, le vendeur réalise l'IP, confirme le paiement et notifie l'usine pour la production.
Bienvenue à l'usine de fabrication professionnelle SEPPES
Nous disposons de certificats authentiques et faisant autorité
We hold over 20 patents and certifications, ensuring our products meet the highest industry standards.





Trusted by Industry Leaders Worldwide
We have partnered with over 4,200 businesses and factories across 70+ countries, including top brands like BMW, Pepsi, Huawei, and Procter & Gamble.













Industrial Sectional Doors Project Cases

Mexico—Material Manufacturing Company
Through the cooperation with Eagle Materials, SEPPES has achieved great results and benefits. Firstly, we succeeded in delivering high quality, high performance porte basculante sectionnelle that perfectly met the needs of Eagle Materials. This makes their logistics operations more efficient and reliable, thereby improving production efficiency and on-time delivery rates. Second, our solution helped Eagle Materials reduce labor costs.

Saudi Arabia - Logistics Warehousing Company
By using our Lifting Sectioanl Doors, Saudi Arabia Co., Ltd. has achieved remarkable results. Their production efficiency has been greatly improved, and the cargo loading process has become smoother and safer. Not only has this improved their operational efficiency, it has also helped them reduce costs and improve customer satisfaction and help them achieve their business goals.

Japan - Automobile Manufacturing Company
In order to meet the needs of Toyota Motor Corporation, SEPPES provided a customized liftgate solution. Our team works closely with Toyota Motor Corporation to gain an in-depth understanding of its specific requirements and standards. Through communication and cooperation with customers, we have succeeded in designing and manufacturing liftgates in line with Toyota Motor Corporation's brand values.
Videos of Steel Sectional Door

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Why Choose SEPPES Sectional Door
We have the most professional manufacturing loading dock equipment and talents in the field of industrial equipments. Let’s look at the whole process of manufacturing and shipping:
20000㎡factory area
Notre usine couvre une superficie de 17 500 mètres carrés, ce qui nous permet de répondre aux besoins de commandes importantes et d'assurer une production et une livraison rapides.
Protection de la sécurité
Électrovanne de sécurité standard pour éviter les chutes. Vous pouvez également choisir un limiteur pour empêcher la voiture de rouler.
Personnel professionnel
Les employés de SEPPES sont tous formés professionnellement et ont tous plus de dix ans d'expérience dans la production.
Contrôle intelligent
Le système de contrôle intelligent de la plate-forme de chargement et de déchargement permet d'assurer le dialogue homme-machine en matière d'exploitation et de maintenance.
Packing
Les produits sont emballés hermétiquement et placés dans des boîtes en bois afin de garantir qu'ils ne seront pas endommagés pendant le transport.
Expédition en toute sécurité
Une fois la porte emballée, notre propre véhicule spécial est chargé de transporter le produit en toute sécurité jusqu'au port d'expédition.
Frequently Asked Questions About Sectional Door
Commercial insulated sectional doors, consists of multiple panels that open vertically and slide upward along a track. This design saves space and is ideal for industrial environments, warehouses, and garages. Sectional doors are operated using a spring tension system, allowing smooth opening and closing for maximum efficiency and space utilization.
Please give the exactly size and quantity of your required door. We can give you a detail quotation based on your requirements. If there are drawings to show your factory site plan will be best.
Yes, industrial sectional doors can be easily automated for remote operation. Many modern sectional doors are compatible with automated systems, allowing them to be opened or closed using a remote control, key fob, or smartphone app. Automation improves convenience, speed, and safety, especially in high-traffic areas.
Our Seppes sectional door has passed CE certification, ISO9001 and SGS certification, and we will carefully check the products before leaving the factory to protect the rights and interests of customers.
The lifespan of a sectional door typically ranges from 15 to 25 years, depending on usage, maintenance, and environmental conditions. Regular maintenance, including lubrication of moving parts and inspection for wear and tear, can extend the door’s life significantly. High-quality materials, such as steel or aluminum, further enhance durability and resilience.

Demande de devis
Adresse
No. 5001 Baodai West Road, Mudu Town, Wuzhong District, Suzhou City, Jiangsu Province, China
Courriel
diana@seppes.com.cn
Téléphone
(+86)17768032191