G1300 concealed door closer specifications for 65 85kg doors and 1000mm width
For B2B readers comparing a concealed door closer manufacturer page, the numbers matter because they convert a product description into a first-stage suitability map. The G1300 concealed overhead door closer from Gemei Hardware is described with visible parameters such as Max 65-85kg door weight, 1000mm width, 230 x 70 mm concealed mounting holes, 90° hold-open, 180° standard non-hold, independent sweep and latch valves, and an operating temperature range of about -40°C to +60°C. These details are useful signals, but they are not a complete installation drawing, certification file, or universal compatibility statement. That distinction is exactly why the model should be read as a specification map, not a promise of universal fit.
Door Weight and 1000mm Width Define the First Suitability Boundary
The 65-85kg door weight range is best read as a load-related specification for initial screening. A concealed overhead door closer must control the movement of the door leaf, so the weight range helps researchers judge whether the closer is being discussed in a light, medium, or heavier interior door application. For the G1300, the visible Max 65-85kg figure suggests that the model is intended for doors within that stated range, not for every door that happens to look similar. A door closer manufacturer may present a model inside a wider product family, but the individual model parameters still need to guide the first decision. The 1000mm width figure adds a second boundary because door width affects leverage and closing behavior. A wider door can place different demands on the closer than a narrower door of the same weight, especially in office or commercial interior projects where consistent closing feel matters. For a concealed door closer for 65-85kg doors, the 1000mm width reference should therefore be read together with the weight range rather than as a separate marketing phrase. It does not automatically answer questions about door thickness, door material, hinge type, left-hand or right-hand configuration, or high-traffic suitability. For specification researchers comparing concealed overhead door closer manufacturers, this is the practical reading: weight and width are not decorative numbers. They tell you where the product begins to make sense and where further confirmation is needed. A G1300 concealed overhead door closer may fit the research brief for modern home and office doors when the door mass, door width, concealed installation space, and function mode are aligned. It should not be treated as a shortcut for fire-rated doors, exterior doors, glass doors, hospital doors, or public-access compliance projects unless separate project documents support those uses. The safest reading is to match those numbers against the drawing, not against a generic door category.
Unit Meanings Behind kg, mm, °C, and Mounting Size
Standard units make specifications easier to compare across supplier pages, especially when a B2B researcher is reviewing multiple hydraulic door closer manufacturers. Kilograms, millimeters, degrees, and temperature ranges each answer a different question. They are useful because they reduce ambiguity, but they still need to be interpreted in relation to the door, frame, installation method, and intended use.
- 65-85kg door weight identifies the stated load range, not every compatible door condition.The kg value helps a researcher judge whether the G1300 belongs in the possible model group for a given door leaf. It does not confirm the door material, hinge geometry, opening frequency, or final closing performance by itself.
- 1000mm width defines a visible size boundary for the door leaf.The mm value helps prevent a common mistake: reading weight alone and ignoring door width. In specification work, door width matters because the closer must control the door movement across its swing, not just support a static number.
- 230 x 70 mm concealed mounting holes describe the space clue for hidden installation.This size is important because concealed closers are mortised into the door and frame area. The number should guide drawing review, but it should not be expanded into unstated tolerance, door thickness, or installation method assumptions.
- -40°C to +60°C operating temperature gives an environmental reading boundary.The temperature range helps researchers understand the stated working environment for the product. It does not replace project-specific evaluation where exposure, indoor climate, maintenance, or unusual site conditions may affect performance expectations.
The useful discipline is to read each unit as a clue with a defined job. kg is about the door weight range, mm is about door width and concealed mounting size, °C is about stated operating temperature, and degrees describe opening or function modes. A concealed door closer manufacturer can provide these values to help B2B readers compare models, but the units do not fill in missing details such as certification grade, packaging, exact material, surface finish, MOQ, or delivery conditions. When researchers miss the unit logic, they often mistake one visible value for a complete fit decision.
90° Hold-Open and 180° Standard Non-Hold Are Function Signals, Not Universal Modes
Function terms can be misunderstood because they sound simple. For the G1300, 90° hold-open and 180° standard non-hold should be read as visible function mode signals. Hold-open generally indicates that the door can remain open at a specified angle under the stated configuration, while non-hold indicates a standard closing behavior without that hold-open stop. The important B2B point is that these phrases do not automatically prove that every configuration of the same model can switch freely between modes, or that every wide-opening door is suitable. The 90° and 180° figures also describe different parts of the user expectation. A 90° hold-open function is relevant where temporary open positioning supports movement, access, or room use. A 180° standard non-hold description is more about the opening range or wide-opening condition without assuming the door will stay open. For a hidden door closer used in modern office doors, that distinction can affect how the product is described in a specification note, product listing, or internal comparison sheet. This is where a meaning map is more useful than a simple feature list. If the project requires a door to stay open, the hold-open wording matters. If the project needs wide opening without a hold-open stop, the non-hold wording matters. If the project needs both under one purchasable configuration, that should be clarified through the exact model variant or technical document. The G1300 concealed hydraulic door closer can be used as a specification example, but the function terms should not be stretched into a universal promise. The independent adjustable sweep and latch valves are also visible terms on the G1300 page, but they should stay in the background for this specification reading. They indicate that closing speed control is part of the product description, yet this article is not about hydraulic damping theory or adjustment procedures. For a product specification researcher, the more immediate job is to separate unit meanings from function meanings: kg and mm define physical suitability clues, while 90° hold-open and 180° non-hold define behavior clues. That is especially true in project notes, where mode names are often copied faster than the supporting dimensions.
Conclusion
The G1300 specification set is useful because it gives B2B readers a compact way to read suitability: 65-85kg for door weight, 1000mm for door width, 230 x 70 mm for concealed mounting space, °C for operating range, and 90° or 180° terms for function behavior. Those values help compare a Gemei Hardware model with other concealed overhead door closer manufacturers, but they should remain first-stage interpretation signals. The next reading step is to connect the visible specification words to the actual door, frame, opening need, and project document, without turning the model into an all-purpose closer. If the available drawing or project brief conflicts with any visible number, the project brief should win.
FAQ
Q：What does the 65-85kg door weight range mean for the G1300 concealed door closer?
A：It means the G1300 is described for doors within a Max 65-85kg weight range, which helps researchers judge whether the model is relevant for a given door leaf. It should not be read as proof that the closer fits every door material, thickness, traffic level, hinge condition, or project requirement.
Q：Why does a 230 x 70 mm concealed mounting hole size matter in a product specification?
A：The 230 x 70 mm size matters because a concealed door closer depends on available space inside the door and frame area. It helps researchers compare the product with drawings or installation space, but it does not provide full installation tolerances, door thickness requirements, or a complete fitting method.
Q：Does 180° standard non-hold mean the G1300 fits every wide-opening door?
A：No. The 180° standard non-hold wording is a function signal, not a universal compatibility statement. It helps describe a wide-opening, non-hold mode, but door width, weight, frame conditions, mounting space, and project requirements still need to match the actual application.
Sources / References
Door hardware 101: The basics of door hardware specifications
ANSI/BHMA Standards for Builders Hardware
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