3234 Series Round-back Design Door Closer

The OUBAO 3234 Series door closer is meticulously engineered to deliver superior, consistent performance, boasting a distinctive round-back design that distinguishes it from traditional door closers on the market. Its sleek, curved profile not only elevates the visual harmony of any door installation but also optimizes structural integrity—utilizing the smooth, rounded contour to distribute stress evenly, enhance load-bearing efficiency, and prevent deformation over prolonged use, while upholding the same exceptional high quality as our other premium product lines.
Certified by UL and CE, the 3234 Series is expertly designed for hassle-free installation and precise adjustment of closing speed and force. Every component undergoes rigorous quality control, from the corrosion-resistant round-back casing to the high-precision internal hydraulic mechanism. This strict quality assurance ensures a long service life and consistent performance, even under frequent, heavy-duty usage scenarios.

 

Technical

  • Closing Force:EN 2-4
  • Body Dimensions:220 mm (L) * 52 mm (W) * 47 mm (H)
  • Footprint:202 mm * 19 mm 

Product Parameters

Item No.Overall DimensionFootprint (A×B) (mm)Applicable Door Weight(kg)Applicable Door Width(mm)Installation StyleFunctionPower SizeCertificatesNotes
L(mm)W(mm)H(mm)
3234BC2205247202 × 1925-80≤ 1100

 · Standard Installation

 · Parallel Installation

 · Top Jamb Installation

 · Slide Arm Installation

· Adjustable Closing & Latching Speed

· Back Check

· Arm with hold-open function(Optional)

2-4UL
UL10.C
CE
· Power Adjustable #2, #3, #4 by Position

· Detachable arm and internal components in high quality steel

· Steel Cover(Optional)

· Optional Parallel Arm installation (P.A. Bracket can be provided upon Request)

· Telescopic Arm(Optional)

Application Scenarios

Commercial Buildings: Offices, shopping malls, hotels, restaurants and retail stores

Public Facilities: Hospitals, schools, airports, libraries and government buildings

Fire Safety: Fire doors, stairwells and emergency exit passages

Residential & Apartments: Entrance doors, common areas and multi-family housing

Industrial & Special Use: Factories, server rooms, climate-controlled spaces and high-traffic areas

 

FAQs

What types of doors is this series suitable for?

This series is designed for various door types, including wooden and metal doors.

Is this door closer suitable for both left and right-hand doors?

Yes, this series features a non-handed design. A single unit can be installed on either left-hand or right-hand opening doors, which greatly simplifies installation and inventory management.

Do you provide OEM services for this door closer?

Yes. As a direct source manufacturer, we offer comprehensive OEM and ODM services. Beyond our standard Silver, White, and Black finishes, we can customize surface treatments, packaging, and specific spring strength configurations to perfectly align with your brand requirements.

Does this series support hold-open function?

Yes, this series can be equipped with a hold-open arm to realize the hold-open function.

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