Onarway Door Closer Adjustable Automatic Size 4 Spring Hydraulic

In this review the Onarway Door Closer Size 4 is presented as a practical, heavy-duty option for medium-weight doors where reliable automatic closing and adjustable speed matter most. It is built from commercial-grade aluminum alloy and uses a hydraulic mechanism to deliver a smooth, quiet close without a manual hold-open feature. The bottom line: this closer is aimed at homeowners and small commercial sites that need a weatherproof, adjustable closer for doors between 65-85kg and up to about 47.2in wide.

Key Features

• Commercial-grade body: Aluminum alloy construction provides antioxidative and anticorrosive protection for long-term exterior or interior use.
• Hydraulic operation: The hydraulic mechanism gives a steady, quiet close and reduces stress on door frames and locks.
• Adjustable speed: Two speed-adjustment screws let you fine-tune sweeping and latching to suit heavier doors and different closing needs.
• Universal installation: Works for right- and left-hand doors and supports regular, top jamb, or parallel installations for flexible mounting.
• Durability tested: Rated for extensive cycles and very low oil-leak risk, which is useful for frequent-use doors in homes or offices.

Who It's For

The Onarway Size 4 closer is best for homeowners, small business owners, and facility managers who need a rugged closer for medium to heavy doors - for example exterior entrance doors, office doors, and fire door applications where a fully automatic, quiet close is required. Its weatherproof finish and corrosion resistance make it suitable for exposed or semi-exposed doorways.

Those who should look elsewhere include owners of very light doors below the specified weight range, or installations that require a hold-open function. If a soft-close or specialized delayed-action mechanism is needed, a closer designed specifically for those features would be a better pick.

Pros & Cons

Pros

• Solid construction and corrosion resistance make it suitable for exterior and high-traffic use.
• Adjustable sweep and latch speed allow a precise close for different door weights and settings.
• Flexible mounting options cover regular, top jamb, and parallel installations for most door frames.
• Instruction handbook with diagrams simplifies installation for a competent DIYer or tradesperson.

Cons

• Does not support a hold-open function, which limits use where propping is required.
• Not suitable for very light doors under the 65kg minimum weight range.

Specifications

Model size	Size 4 spring hydraulic closer
Suitable door weight	65-85 kg (143-187 lb)
Suitable door width	80-120 cm (31-47.2 in)
Max open range	180 degrees
Body material	Commercial-grade aluminum alloy
Installation types	Regular, top jamb, parallel
Adjustability	Speed adjustable (sweep and latch)

Our Verdict

The Onarway Size 4 hydraulic closer is a dependable choice for medium-weight exterior and interior doors where a quiet, automatic close and corrosion resistance are priorities. It delivers good value with flexible installation and adjustable closing behavior, though it is not for very light doors or installations that need a hold-open feature.

Frequently Asked Questions

Can this closer be used on exterior doors?
Yes; its antioxidative and anticorrosive aluminum alloy makes it suitable for exterior and semi-exposed doorways.

Does it include a hold-open feature?
No; this model does not support a hold-open function and always closes automatically.

What door weights and widths does it fit?
It is intended for doors weighing 65-85 kg and door widths roughly 80-120 cm (31-47.2 in).