How to Determine Industrial Door Lift Type Based on Lintel and Door Opening Space
Selecting the correct industrial door lift mechanism requires precise calculations of door opening height (H)/lintel height (D) /ceiling depth (C). Below is a structured guide with formulas and decision criteria to simplify the process.
| Lift Type | Headroom Height Size(D) | Ceiling Depth (C) | Side Size(If B1 fixed with Motor) |
| Standard Lift | 500mm < H < 1000mm | C = H + 800mm | B1: 610mm, Other: 120mm |
| High Lift | =Vertical lift height+310mm | C = H − Lift Height + 760mm | B1: 610mm, Other: 120mm |
| Vertical Lift | ≥ (Door Height + 210mm) | C ≥ 460mm | B1: 610mm, Other: 120mm |
Notes:
Lift Height (for High Lift): Typically, this is the vertical distance the door travels before turning horizontally.
Side Clearance: Ensures proper installation of guide rails and motor placement.
1. Decision-Making Process
Step 1: Measure Door Opening Height (H)
If 500mm < H < 1000mm → Standard Lift is the default choice.
If H ≥ 1000mm, proceed to check lintel height (D) and ceiling depth (C).
2: Check Lintel Height (D) & Ceiling Depth (C)
-Standard Lift
Example: If H =3000mm → 1000mm≥D ≥ 500mm.
Ceiling Depth (C): Must match D (C = H + 1700mm).
-High Lift
Requirement: D ≥ 1000mm
Ceiling Depth (C): C = H − Lift Height + 760mm
Example: If H = 3000mm and Lift Height = 2000mm → C = 3000 − 2000 + 760 = 1760mm.
-Vertical Lift
Requirement: D ≥ H + 210mm
Ceiling Depth (C): Must be ≥ 460mm.
Example: If H = 2500mm → D must be ≥ 2710mm.
3: Verify Side Clearance
All lift types require:
One side: ≥ 610mm (for motor installation).
Opposite side: ≥ 120mm (for guide rail stability).
4. Summary of Selection Criteria
Standard Lift → Best for small doors (500–1000mm) with D ≥ H + 1700mm.
High Lift → Ideal for medium-to-large doors (≥1000mm) with D ≥ H + 400mm.
Vertical Lift → Suitable for very tall doors where D ≥ 2H + 210mm.
Final Checklist
✔ Measure H, D, and C accurately.
✔ Ensure side clearances (610mm + 120mm).
✔ Compare values with the formulas above.
Emily Hou | Executive Director
ELEMENT NEW MATERIALS CO., LTD
📍 Zhengzhou, China
📱 +86 186 9732 0091 (Mobile/WhatsApp/Skype/WeChat)
📧 emily@elementpanel.com
ELEMENT NEW MATERIALS CO., LTD – Your Trusted Partner for High-Quality Industrial Door Solutions. 🚪🔧