Quick Answer
OUBAO presented door closers, magnetic locks and related door control products during its October 15–19, 2026 participation in the 140th Canton Fair in Guangzhou. At booth 10.1 C33–34, D13–14, visitors could view product displays and discuss samples with the team. With manufacturing experience since 1987, a base in Lishui, China, and OEM/ODM support, OUBAO offers buyers a starting point for comparing door applications, installation options, product documentation and packaging requirements before requesting a model-specific quotation.
For distributors and purchasing managers, a useful exhibition visit goes beyond collecting a catalogue. It helps answer whether a supplier has the manufacturing background, product range and order support your business needs. This recap brings together OUBAO’s exhibition highlights and practical answers to the questions buyers raise when sourcing door closers and access-control hardware.
What could buyers see at OUBAO’s Canton Fair booth?
The display brought different door-control categories into one space. Rows of door closers showed a choice of body styles, arm arrangements and finishes. Panels also introduced electromagnetic locks, panic exit devices and automatic swing door operators.
That variety matters when you buy for more than one type of opening. A distributor supplying office doors may need a different closer format from a business supplying hotel interiors. An access-control buyer also needs to consider the lock, power supply and mounting arrangement alongside the way the door closes.
What did the product displays make easier to compare?
Seeing different door closers together gave visitors a way to compare their physical layouts. The position of the body, the shape of the arm and the visible finish are useful starting points for a shortlist. Drawings and specifications then establish whether that shortlist suits the intended doors.
The wider display also showed the different jobs performed by door control products. Door closers control closing movement. Magnetic locks secure an opening electrically. A panic exit device provides a push-operated means of releasing a door. These products need separate selection checks even when they are being considered for the same project.
Buyers following up after the exhibition can use the OUBAO product range to identify the relevant category before discussing individual models.
What stood out in the face-to-face meetings?
For a purchasing team, a sample provides a concrete reference for the next discussion: which model is it, how does it mount, and which version should be quoted? Keeping that reference with the follow-up enquiry helps connect the exhibition conversation to the correct product specification.
Is OUBAO a manufacturer, and where is its factory?
Yes. OUBAO is a door closer manufacturer in China that also produces magnetic locks and related door-control hardware. Its manufacturing base is in Lishui, Zhejiang, and its door-control business dates back to 1987. Buyers can review the OUBAO company background when assessing its experience and production operations.
OUBAO describes an in-house workflow that includes mould development, die casting, CNC machining, assembly and oil filling. CNC machining means computer-controlled cutting of components to their required dimensions. For hydraulic door closers, oil filling is part of producing the mechanism that controls closing movement.
This manufacturing background gives buyers specific processes to discuss when evaluating a supplier. Ask how the approved sample specification is carried into production and which inspection records apply to the order. Those answers are more useful for assessing batch consistency than a general claim of high quality.
Which door closers should buyers consider for their range?
Start with door width, door weight and installation space. Then compare the closing functions and appearance your customers need. Choosing door closers by weight alone leaves important questions unanswered, including whether the mounting arrangement fits the frame.
The following examples from OUBAO’s current product range offer starting points for post-exhibition enquiries.
When should you consider surface-mounted door closers?
Surface-mounted door closers have a visible body fixed to the door or frame. They are worth considering when the project allows exposed hardware and the mounting space suits the selected arrangement.
OUBAO’s 5000 Series adjustable door closers include two models with different power and door-weight ranges:
| Model | Published power size | Published door-weight range | Purchasing implication |
|---|---|---|---|
| 5014BC | 1–4 | 15–85 kg | Compare this option with the lighter doors in your proposed range. |
| 5036BC | 3–6 | 40–150 kg | Consider this option when the required door-weight range extends higher. |
Power size describes the closer’s spring strength. A larger number indicates stronger closing force, but the correct choice still depends on the door and mounting configuration. The product table does not give a door-width limit for these two models, so include width in your enquiry rather than selecting from weight alone.
Both models list adjustable closing and latching speeds. Closing speed controls the main closing movement; latching speed controls the final part as the door reaches the frame. They also list backcheck, which provides resistance during opening. Delayed action, which slows part of the closing movement, and hold-open arms are optional configurations rather than standard features on every order.
- Standard ANSI 156.4 Grade 1
- Certification UL Certified
- Back Check Built-in
- Delay Action Optional
When are concealed door closers worth considering?
Concealed door closers suit enquiries where keeping the hardware out of sight is a priority. Installation space needs attention early because the mechanism fits within the door or frame.
The 1035 adjustable concealed closer lists power sizes EN 3–5, a maximum door width of 1,250 mm and a maximum door weight of 100 kg. Its published body dimensions are 237 × 81 × 37 mm.
These figures help buyers screen a potential option. They do not replace checking the installation drawing against the actual door profile. For a hotel or office range, confirm the available recess space before approving the closer. That check can prevent a product from reaching installation with an unsuitable door or frame preparation.
- Closing Force Spring Strength EN 3-5
- Max Door Width 1250mm
- Max Door Weight 100kg
How should buyers select magnetic locks for access-control doors?
Choose magnetic locks by their holding-force class, power requirements and mounting arrangement. Holding force describes resistance to separation under stated conditions. It is different from the door-weight limit used when selecting door closers.
The OUBAO OB280 magnetic-lock series is listed in the nominal 280 kg holding-force class. Its table specifies 12 V DC, with 24 V DC available upon request. DC means direct current, the type of electrical supply specified for the lock.
The series is described as fail-safe: the lock releases when power is removed. Buyers should discuss that behaviour as part of the complete access-control and exit arrangement, rather than treating the lock specification as approval of the whole system.
For an office entrance or another controlled opening, give your magnetic lock manufacturer the door material, frame layout and power-supply details. Also identify any required lock-status signal or indicator. OB280 configurations differ, so the selected version needs to match those requirements.
This is particularly useful when ordering door closers and magnetic locks together. Each component performs a different task, and the quotation should identify the exact configuration of both.
- Holding Force 280kg
- UL Listing UL Listed
- Conformity CE Marked, FCC Compliant
- Chemical Safety RoHS & REACH
What certification information can OUBAO provide?
OUBAO publishes certification information, and selected product pages list relevant standards or marks. The useful purchasing question is which current document covers the exact model and configuration you intend to buy.
For example, the 5000 Series page lists UL, UL10.C and ANSI 156.4 Grade 1 for the two models discussed above. The OB280 page lists UL and CE among its series-level documentation claims. Request the supporting documents for your selected version before placing an order.
Use the OUBAO certification overview as a starting point, then specify the product, destination market and project requirement. Check that the model reference on the document matches the quotation. For a fire-door application, the intended door and installation configuration also need to be considered.
An adjustable power range is a separate specification from certification. For example, EN 3–5 in a closer’s power description does not by itself establish a certification claim for that product.
Can buyers customise packaging and plan different order types?
Yes. OUBAO’s closer product pages offer packaging customisation, alongside options such as surface treatment and spring-strength configuration. Its OEM/ODM service supports discussions from requirements and prototypes through to production. OEM here means supplying products to an agreed specification for a buyer’s brand; ODM includes product-design support.
If you sell door closers under your own brand, packaging is part of the conversation too. Once you have chosen the model, discuss the finish, arm type and included accessories with OUBAO, along with the labels and instructions your customers need. These details help shape a pack that matches both the product and your brand.
The delivery schedule should reflect those choices. A standard configuration may follow a different timeline from an order that needs new packaging or product changes. Confirm the expected production time and when it starts, so you can plan stock and give customers a realistic delivery estimate.
What should buyers clarify after the exhibition?
What information should accompany a quotation request?
Send the model reference or a photograph of the sample you discussed, together with the intended application. For door closers, include door width, weight and mounting position. For magnetic locks, add door and frame details, voltage and required signals. Include the quantity, market, documentation needs and packaging brief in the same enquiry.
Should standard and customised orders use the same delivery estimate?
Ask for separate schedules when their scope differs. A standard model and an order involving packaging approval or a revised configuration need a quotation that reflects those differences. Confirm the required delivery date early so the proposed production and shipping schedule can be reviewed against it.
How can buyers compare OUBAO with another supplier?
Compare equivalent configurations and the support behind them. Look at model fit, included accessories, documentation, sample acceptance, packaging and written order terms alongside unit price. OUBAO’s manufacturing history, in-house processes and choice of closer formats are capabilities to assess through those checks. They provide a more concrete basis for discussion than a broad claim that one supplier is better.
How can you turn an exhibition discussion into a suitable order?
OUBAO’s 140th Canton Fair participation brought product displays, sample discussions and buyer meetings together. The next step is to narrow that broad choice into door closers, magnetic locks or related hardware that match your market and installation needs.
Contact the OUBAO team with your preferred models, door details, target market, estimated quantities and packaging requirements. Request a model-specific quotation with the supporting documents and a written order schedule.
