Elevator hoist parts hall door stainless steel latch screw
Description
| Product Type | customized product | |||||||||||
| One-Stop Service | Mold development and design-submit samples-batch production-inspection-surface treatment-packaging-delivery. | |||||||||||
| Process | stamping，bending，deep drawing,sheet metal fabrication，welding，laser cutting etc. | |||||||||||
| Materials | carbon steel,stainless steel,aluminum,copper,galvanized steel etc. | |||||||||||
| Dimensions | according to customer's drawings or samples. | |||||||||||
| Finish | Spray painting, electroplating, hot-dip galvanizing, powder coating, electrophoresis, anodizing, blackening, etc. | |||||||||||
| Application Area | Elevator accessories, engineering machinery accessories, construction engineering accessories, auto accessories, environmental protection machinery accessories, ship accessories, aviation accessories, pipe fittings, hardware tool accessories, toy accessories, electronic accessories, etc. | |||||||||||
Advantages
1. More than 10 years of overseas trade expertise.
2. Provide one-stop service from mold design to product delivery.
3. Fast delivery time, about 25-40 days.
4. Strict quality management and process control (ISO 9001 certified manufacturer and factory).
5. Factory direct supply, more competitive price.
6. Professional, our factory serves the sheet metal processing industry and uses laser cutting technology for more than 10 years.
Quality management
Vickers hardness instrument.
Profile measuring instrument.
Spectrograph instrument.
Three coordinate instrument.
Shipment Picture
Production Process
01. Mold design
02. Mould Processing
03. Wire cutting processing
04. Mold heat treatment
05. Mold assembly
06. Mold debugging
07. Deburring
08. electroplating
09. Product Testing
10. Package
What are the main functions and common materials of door screws?
Fixing function
The door screws are mainly used to fix the door panels of the car door and the suspension system (door frame) to ensure that the door panels are firmly suspended on the sliding track.
Adjustment function
By adjusting the tightness of the door screws, the height and inclination of the door panels can be fine-tuned to ensure that the gap between the door and the track and the threshold is appropriate to prevent jamming or poor friction.
Load-bearing function
The door screws must be able to bear the weight of the car door and withstand mechanical vibration and impact when the door is opened or closed, so strength and stability are essential.
Common materials
Stainless steel
Corrosion-resistant, wear-resistant, high strength, and long service life.
Carbon steel (galvanized or phosphating)
Carbon steel screws are galvanized or phosphating to improve corrosion resistance, carry a large load, and have a low cost.
Alloy steel
Excellent strength and wear resistance, suitable for elevators with frequent door openings and closings.
Features of door screws
Vibration resistance: Elevator doors are subject to a large number of switching operations and mechanical vibrations during daily operation, so door screws must have good vibration resistance to ensure that they will not loosen during long-term use.
Durability: Due to the high frequency of use of elevators, the material and design of door screws must ensure their long-term durability and corrosion resistance, and reduce the frequency of replacement and maintenance.
Adjustability: Some door screws are designed with adjustment functions, which can fine-tune the position and height of the car door by rotating the screws to ensure precise alignment between the door and the ground and the car frame.
Coordination with pulleys
Elevator car doors are usually fixed to the pulley system through door screws, and the pulleys run on the guide rails. Therefore, the stability of the door screws is closely related to the smooth sliding of the pulleys.
Our Services
Xinzhe Metal Products Co., Ltd. is a professional sheet metal processing manufacturer located in China.
The primary technologies used in processing are welding, wire cutting, stamping, bending, and laser cutting.
The primary technologies used in surface treatment are electrophoresis, electroplating, anodizing, sandblasting, and spraying.
The primary products are brackets for curtain walls, fixed brackets, connecting brackets, column brackets, car brackets, counterweight brackets, elevator rail clamps, buffer brackets, elevator rail clamps, machine room equipment brackets, door system brackets, expansion bolts, spring washers, flat washers, locking washers, bolts and nuts, and other building accessories.
We provide customized accessories for various types of elevators for global brands such as Schindler, Kone, Otis, ThyssenKrupp, Hitachi, Toshiba, Fujita, Conley, Dover, etc.
