Shenzhen HuaJie Automation Co., Ltd

-25℃ Low-Temperature Rapid Door for Cold Room

Fri, 06 Feb 2026 17:40:20 +0800

The rapid-opening doors for low-temperature cold storage are primarily deployed in smart public welfare projects.

By integrating servo technology, sensor technology, and communication technology, the company has developed intelligent, technologically advanced, digitalized, modular, and user-friendly cold storage door solutions.

While ensuring safety and stable operation, these products focus on providing energy-saving solutions for fresh-keeping warehouses, freezing warehouses, and frozen logistics channels.

The company is committed to assisting cold chain logistics enterprises in enhancing operational efficiency in cold storage areas and reducing energy-related operational costs.

Contemporary Low-Cost Steel Glass Interior Clean Room Doors for Hospitals

Thu, 05 Feb 2026 16:37:22 +0800

Design Modern Cheap Price Steel Glass Clean Room Interior Hospital Doors

Product Information

MaterialGalvanized Steel

Size

Standard Size 2100*900*50mm

ColorCustomized Color

Door frame thickness

50mm

Door leaf thickness

50mm

Design

Professional Customized

Keyword

hospital doors,clean room doors,steel doors

Glass

Double Glazing Glass

Application

Hospital,clean room,hotel

sample

You have to Send us inquiry before GET LOW PRICE SAMPLE!

PackageStandard export carton with shipping marks

Custom 3×3m Self-Repairing Zipper High Speed Door Quotation Framework & Product Overview

Wed, 04 Feb 2026 17:27:44 +0800

1. Product Overview

Self-Repairing Zipper Design: The curtain is made of high-strength PVC or polyester fabric with a self-repairing zipper system, allowing minor tears to close automatically, reducing maintenance costs.
Fast Operation: Speed ranges from 0.8~2.0 m/s, improving traffic flow.
Excellent Sealing: Optional double-layer or insulated curtains for dust, pest, and temperature control.
Safety Features: Standard infrared sensors and emergency stop function, compliant with industrial safety standards.

2. Pricing Framework (For Reference Only)

The cost of a custom 3×3m self-repairing zipper rapid door depends on the following factors:

（1）Basic Configuration

Curtain Material: Standard PVC (economical) vs. reinforced tear-resistant fabric (durable) vs. transparent window design (high visibility).
Drive System: Domestic servo motor (cost-effective) vs. imported motor (longer lifespan, higher stability).
Control System: Basic PLC control vs. smart frequency conversion (adjustable speed, soft start/stop).

（2）Additional Features

Sealing Performance: Single-layer (basic) vs. double-layer (thermal/dust insulation) vs. cold storage-grade (extra insulation).
Safety Options: Standard infrared sensors vs. additional safety edges, radar sensors, or light curtains.
Automation Integration: Compatibility with ERP/WMS systems, remote control, or automatic triggering.

3. Typical Applications

Warehousing & Logistics: High-speed sorting lanes, minimizing temperature loss.
Food & Pharma: Dust and bacteria prevention, meeting GMP standards.
Manufacturing: Noise and dust isolation, improving workshop conditions.

For an exact quote, specific requirements (material, motor brand, additional features, etc.) must be evaluated.

Q&A

Q1: How does the self-repairing zipper mechanism work?

A1: The door curtain has overlapping interlocking strips that automatically realign after minor impacts, preventing gaps and maintaining insulation.

Q2: Can this door operate in extreme temperatures?

A2: Yes, with optional insulated or cold storage-grade curtains, it can function in environments as low as -30°C or high-temperature industrial settings.

Q3: What maintenance is required for these doors?

A3: Minimal maintenance—periodic cleaning of sensors and lubrication of tracks. The self-repairing design reduces wear-and-tear repairs.

Q4: Is remote monitoring/control supported?

A4: Yes, advanced models integrate with IoT systems for real-time status updates and automated triggers (e.g., opening via forklift sensors).

Precision Synchronous Servo Motor for High-Speed Door – Worm Gear Reduction

Tue, 03 Feb 2026 15:18:34 +0800

High Speed Door Fast Door Servo Motor Permanent Magnet AC-Synchronous Servo Motor with Worm Reductio

Description :

220V Industrial Fast Door Servo Control System

Adopt Permanent Magnet AC-Synchronous Servo Motor+ Servo Controller

Higher Precision , Fast Action , High Speed

Motor Size is Small and Big Power

Double Encoder Design , Interaction Calibration

Inner Encoder Controls Motor Trip and Motor Conrtol

Outer Absolute Pulse Encoder makes sure Protection of Limit and Zero calibration

Torque Servo System

Each operation is based on load conditions and set the speed, automatically adjust the torque, run more smoothly soft

LCD display (Chinese and English)

English and Chinese interface, debugging convenience, provide status and fault tips

Techincal Specification

Product Description for Self-Repairing Zipper Rapid Door

Mon, 02 Feb 2026 14:05:45 +0800

High-Speed & Intelligent Adjustment

Featuring an industry-leading adjustable opening speed of 1.2–2.0 m/s, this self-repairing zipper rapid door ensures efficient logistics and precise control. The innovative integration of patented zipper track technology and multi-layer sealing curtains achieves the perfect balance of airtightness, energy efficiency, and operational performance, with energy savings far surpassing traditional rapid doors.

Ultimate Safety, Human-Centric Design

Flexible Protection: The high-resilience soft curtain features a weight-free bottom bar, eliminating collision risks to personnel and equipment in emergencies.
PUSHPULI Dual Rotary Shaft System: A revolutionary design that enables rapid closure through synchronized chain engagement—no reliance on curtain weight, removing all risks of hard-component impact while improving sealing performance by over 60%.

Exceptional Durability, Long-Lasting Performance

Million-Cycle Reliability: Core components undergo rigorous testing, with standard models rated for 1+ million cycles and reinforced versions exceeding 5 million maintenance-free operations.
Self-Repair Technology: Automatically detects and corrects micro-damage in the zipper track, reducing maintenance costs by 30%+ and extending service life.

Ideal ApplicationsPerfect for cold-chain logistics, cleanrooms, automated warehouses, and other industrial environments demanding airtightness, efficiency, and safety—helping businesses achieve energy savings and workplace safety simultaneously.

Key Technologies▸ Adjustable Speed (1.2–2.0 m/s) ｜▸ Zero-Collision Risk Design ｜▸ Dynamic Sealing System ｜▸ 1M+ Cycle Certification ｜▸ Self-Repair Diagnostics

——Redefining Industrial Rapid Door Standards for Safety & Energy Efficiency——

Product Parameters

Max dimension	5000mm wide*6000mm high
Power supply	1-phase220±10%V,50/60 HZ.Or 3 phase,380±10%V,50/60 HZ
Protection level of electric	IP54--IP65
Wind resistance	beaufort scale 10(25m/s)
Max opening speed	2.0m/s
Max closing speed	1.0m/s
Design Service Life	5,000,000 openings and closings
Available colors of fabric	Yellow, blue, red, gray, white, green, orange can be customized
Top cover and Frame	Standard Powder coated galvanized steel . Optional :Aluminum Alloy and201/304 stainless steel

Anti-Collision Swing Door: Alternative Names and Key Functions

Sat, 31 Jan 2026 11:59:46 +0800

Alternative Names for Anti-Collision Swing Doors

Swing Door
Double-Action Door
Spring Door
Rebound Door
Self-Closing Door
Double-Swing Door
Impact-Resistant Swing Door
Kitchen Door / Restaurant Door (common in food service)
Cold Storage Swing Door (for freezers & refrigerated rooms)
Industrial Swing Door (for warehouses & factories)

Main Functions of Anti-Collision Swing Doors

Two-Way Traffic Flow

Allows smooth push/pull access from both sides, ideal for high-traffic areas like kitchens, warehouses, and supermarkets.

Impact Absorption

Equipped with spring or hydraulic mechanisms to reduce door slamming, minimizing wear and tear.

Automatic Return

Self-closing feature helps maintain temperature control (e.g., cold storage), dust prevention, or noise isolation.

Improved Work Efficiency

Facilitates quick passage for handcarts, forklifts, and logistics, boosting productivity.

Hygiene & Safety

Reduces hand contact in food processing & pharmaceutical industries; prevents cold air loss in freezers.

Thermal & Sound Insulation

Some models use insulated materials (cold storage doors) or soundproofing designs (industrial noise control).

Durability & Damage Resistance

Made of stainless steel, aluminum, or reinforced PVC for high-impact and corrosive environments.

Common Applications

Food Service: Restaurant kitchens, fast-food chains
Warehousing: Logistics centers, distribution hubs
Industrial: Manufacturing plants, production lines
Cold Chain: Freezer rooms, refrigerated storage
Retail: Supermarket backrooms, fresh food sections

Q&A

Q1: What is the main advantage of a double-action swing door?

A1: It allows smooth two-way access, making it ideal for high-traffic areas like kitchens and warehouses.

Q2: How does a self-closing swing door improve energy efficiency?

A2: It automatically shuts to prevent air leakage, crucial for cold storage and climate-controlled spaces.

Q3: Are anti-collision doors suitable for forklift traffic?

A3: Yes, heavy-duty industrial swing doors are designed to withstand impacts from forklifts and carts.

Q4: What materials are best for corrosion-resistant swing doors?

A4: Stainless steel and reinforced PVC are ideal for humid or corrosive environments like food processing plants.

Industrial Overhead Doors: Space Requirements for Different Lift Types

Sat, 31 Jan 2026 10:26:12 +0800

1. Vertical Lift

Mechanism: The door panels rise straight up, parallel to the opening.
Headroom Requirement:

Door height + 300–500 mm (for the drive system and track clearance).
Suitable for high-ceiling spaces (e.g., warehouses, factories).

Features:

No horizontal tracks, saving side space but requiring strict overhead clearance.

2. Standard Lift

Mechanism: The door rises vertically before turning horizontally (typically 90°) along the ceiling.
Headroom Requirement:

Vertical section: 40–50% of door height (e.g., 1.6–2 m for a 4 m door).
Horizontal section: Door width + ~300 mm (for track extension).
Total height: Vertical section + horizontal track thickness (~200 mm).

Features:

Balances vertical and horizontal space, ideal for medium-height ceilings.

3. High Lift

Mechanism: The door rises higher before turning horizontally, with tracks closer to the ceiling.
Headroom Requirement:

Vertical section: Customizable (typically ≥1.5× door height).
Horizontal section: Door width + ~300 mm.
Used where maximum clearance is needed (e.g., truck loading).

Features:

Higher vertical lift, optimized for tall ceilings.

4. Low Headroom Lift

Mechanism: Curved or tight-radius tracks minimize vertical space usage.
Headroom Requirement:

Only 150–300 mm (tracks hug the ceiling).
Horizontal extension ≈ door width.

Features:

Best for low ceilings (e.g., basements, garages).

5. Other Variants (Side Roll-Up, Fold-Up)

Side Roll-Up: Tracks run along the wall; headroom similar to standard lift.
Fold-Up: Panels stack vertically, requiring ~1/3 of door height in clearance.

Comparison Table

Lift Type	Vertical Space Needed	Horizontal Space Needed	Best For
Vertical Lift	Door height + 300–500 mm	None	High ceilings, unobstructed
Standard Lift	40–50% of door height	Door width + 300 mm	General use
High Lift	≥1.5× door height	Door width + 300 mm	Maximizing clearance
Low Headroom	150–300 mm	Door width + 300 mm	Low ceilings

Selection Tips

Measure overhead clearance before choosing a lift type.
Consider traffic needs: High lift for large vehicles, low headroom for tight spaces.
Factor in drive systems: Torsion springs and motors may need extra space.

Consult a professional supplier for site-specific assessments, factoring in door dimensions, building structure, and safety standards (e.g., fire codes).

Q&A

Q1: Which lift type requires the least overhead space?

A1: Low headroom lift (only 150–300 mm).

Q2: What is the advantage of a high lift door?

A2: It maximizes vertical clearance, ideal for tall vehicles.

Q3: Can a standard lift door be used in low-ceiling areas?

A3: No, it requires at least 40–50% of door height vertically.

Q4: Do vertical lift doors need horizontal track space?

A4: No, they rise straight up without horizontal tracks.

Why Do PVC Rapid Roll-up Doors / Stacking Doors Require More Space Above the Door Opening?

Sat, 31 Jan 2026 09:17:32 +0800

1. Door Curtain Stacking Storage Requirement

Multi-layer curtain folding: When opening, the door curtain folds horizontally and stacks vertically above the door opening. This design requires sufficient overhead space to accommodate the folded curtain (typically 1/3 to 1/2 of the door height).
Increased thickness when folded: The PVC curtain consists of multiple flexible layers, and when folded, their combined thickness takes up more space. For example, a 6-meter-high door may require 0.8–1.2 meters of overhead space when stacked.

2. Guide Rail & Balancing System

Inclined/curved rail design: The rails are often angled or curved to ensure smooth folding, improving opening speed but increasing space usage.
Counterweight/spring system: Some models use springs or counterweights to balance the curtain, requiring additional installation space.

3. Drive Mechanism Installation

Motor & transmission components: The motor, chain, or belt drive system is usually mounted horizontally above the door, requiring extra space (approx. 200–300 mm).

4. Safety & Wind Resistance Features

Reinforcement beams: Industrial rapid roll-up doors may need overhead reinforcement (e.g., aluminum or steel beams) for wind resistance.
Safety sensors: Photoelectric sensors or emergency stop devices also require wiring space.

5. Comparison with Other Door Types

vs. high-speed roller doors: Roller doors coil around a drum (~0.3–0.5m diameter), while stacking doors need more space due to folding.
vs. sectional overhead doors: Sectional doors slide horizontally along the ceiling, requiring high clearance but operating slower.

Space-Saving Solutions (If Limited Space)

Low-headroom models: Some manufacturers offer compact designs with optimized rail curvature.
External/side-mounted motors: Relocate the motor to the side (customization needed).
Reduced curtain layers: Thinner folding (may reduce insulation/noise resistance).

Conclusion

PVC rapid stacking doors trade overhead space for high-speed operation , wind resistance, and durability, making them ideal for industrial use. When designing, consider door height and available space, or consult suppliers for customized solutions.

Q&A

Q1: How much space is needed above the door for a PVC stacking door?

A1: Typically 1/3 to 1/2 of the door height (e.g., 0.8–1.2m for a 6m door).

Q2: Can a stacking door work with low overhead space?

A2: Yes, some models have low-headroom designs, but opening speed may be slightly reduced.

Q3: Why not use a roller door instead?

A3: Roller doors save space but are less wind-resistant and durable for high-frequency industrial use.

Q4: How to reduce the required overhead space?

A4: Opt for low-headroom models, side-mounted motors, or thinner curtain materials.

Premium Aluminum Alloy Insulated Spiral Door for Durability

Thu, 29 Jan 2026 11:32:42 +0800

Long lfe
Hard fastdoors aredesigned and manufactured for efficient use.Spral technology and weight balancing design features ensure avery long service lifeof the product.
economical efficiency
Hard fast doors can improve work efficiency for users.Faster opening speed shortens waiting time and speeds up the passage of logistics.
Low failure rate
Hard fast door with its patent design,exquisite technology,unique technology,harsh material selection,strict quality management system to ensure a very lowfailure rate.
energy eflciency
According to the size of the door,the heat insulation value of the hard fast door can reach 0.7W/m2K.

Product Parameters

Safety Protection System	Infrared Switch/Safety ContactBelt or Pressure Wave Switch
Operation way	electric ,remote,manual
Sealing performance	guide ralseal,door curtain connection seal,door followseal,door bottom seal
Guideway	Ethylene propylene diene rubber,aluminium alloy,cold rolled steel plate for combined guideway
Servo technology	more effective protection of motor and brake pads,according to the actual needs of digital adjustments to varying degrees,reduce the wear of components
Wind resistance	30m/s,12grades

Premium Transparent PC Crystal Display Tubes for Retail Merchandising

Thu, 29 Jan 2026 09:10:09 +0800

1. Material composition
Aluminum alloy frame: made of high-strength aluminum alloy profile , the surface is treated by electrostatic powder spraying process, which is corrosion-resistant, oxidation-resistant, and has a service life of more than 20 years
Crystal curtain is made of polycarbonate PC bulletproof adhesive, which has the characteristics of high transparency (visibility of more than 80%), low temperature resistance, high temperature resistance, and impact resistance is 250 times that of ordinary glass
Connecting parts: The curtain is connected in series by stainless steel pipe or aluminum alloy tube, and the guide rail is designed with double-groove aluminum alloy and embedded silent material to ensure smooth operation
2. Structural design
Straight strip curtain: The door curtain is arranged in a straight strip shape, with a simple and atmospheric appearance, with both ventilation and perspective functions, and can be customized in a variety of colors such as white, gray, champagne, etc
Reel system: The door body is wound on the top reel by an electric drive system, which saves space and is suitable for places with limited opening height
3. Aesthetics and permeability
Transparent PC material provides good light transmittance, enhances indoor lighting, and is suitable for commercial window display, with 24-hour advertising effect
The aluminum alloy frame has strong lines and is combined with crystal curtains to enhance the modernity and decoration of the architectural space
4. Safety & Protection
Anti-theft performance: aluminum alloy curtain has strong impact resistance, and some products are equipped with infrared sensors and anti-collision devices, which can automatically stop or reverse in case of resistance to improve the safety level
Sealing: The design of double-groove guide rail and rubber sealing strip at the bottom is effective dustproof, windproof and sound insulation, and is suitable for harsh environments such as industrial workshops