Twin-shaft insulated zipper freezer door systems by SEPPES for freezer rooms, refrigerated warehouses, clean processing areas and temperature-controlled logistics lines.
SEPPES engineered for cold-chain efficiencyHigh speed operation, insulated curtain structure and tight sealing help keep temperature zones stable during daily traffic.
Key Parameters
SEPPES high speed freezer door configuration
Door typeSEPPES twin-shaft insulated zipper high speed freezer door for cold storage door openings and temperature-controlled areas
CurtainMulti-layer insulated flexible curtain with reinforced horizontal sections
ApplicationFreezer rooms, cold warehouses, commercial freezer door openings, food processing, clean logistics and conveyor passages
OperationFast electric opening and closing with optional radar, pull cord, loop detector or access control
Working temperatureDesigned for low-temperature operation from -1 C to -28 C / 30 F to -18 F
SafetyPhotoelectric protection, emergency stop and optional safety edge
Custom optionsOpening size, curtain color, frame material and control method can be configured by project
Product Features
Fast access with reliable thermal separation
OKSEPPES thermal performanceInsulated flexible curtain helps freezer doors limit energy loss and condensation around frequently used openings.
OKFast daily operationHigh speed commercial doors reduce waiting time for forklifts, conveyors and personnel traffic.
OKCold-room sealingInsulated doors for cold rooms use side tracks, bottom edge sealing and a reinforced frame to reduce air leakage.
OKHeated anti-freeze systemIntegrated heating in the guide structure helps prevent rail freezing caused by frequent heat exchange during door operation, supporting stable performance from -1 C to -28 C / 30 F to -18 F. Optional de-icing equipment can be added for extra protection in low-temperature environments.
OKAbsolute encoder limit deviceMulti-turn absolute encoder limit control uses a clock-type high-precision design with power-off memory, no accumulated error and stable long-term operation for fast roll-up freezer doors.
OKFROG PUPIL control systemThe German-brand FROG PUPIL intelligent control system is developed for industrial high speed doors, using a powerful chipset for smooth variable-frequency operation, energy saving and real-time display of operating status and fault location.
OKIndustrial controlsControl box, safety sensors and optional activation devices can be matched to industrial freezer doors and automated lines.
Core Door Features
Designed for safer, warmer and more reliable freezer access
Airbag Bottom EdgePressure-sensitive protection stops and reverses the curtain when it touches an obstacle during closing.
Automatic Reset StructureThe self-repairing zipper design lets the curtain release under impact and reinsert on the next cycle.
Track Heating SystemLow-voltage heating in the side tracks helps prevent condensation and frost in sub-zero rooms.
Multi-layer Door CurtainHigh-tenacity PVC and internal insulation foam create a durable barrier against heat exchange.
Performance
Built for conveyor rooms, freezer entries and production corridors
The SEPPES high speed freezer door can be integrated into automated lines or installed at manual traffic openings. Its compact frame, insulated curtain and control system are suitable for facilities that need both speed and temperature protection.
Energy-saving accessShorter opening time helps reduce cold-air exchange and supports refrigeration efficiency.
Safer movementPhotoelectric sensors, warning labels and emergency controls support daily industrial use.
Project-ready installationCompatible with cold storage panels, conveyor lines, wall openings, coolroom doors and existing insulated rooms.
Specifications
Technical parameters
Metric and imperial sizes are shown together for easier project review. Final values are confirmed according to site drawings.
Parameter
Specification
Product name
SEPPES twin-shaft insulated zipper high speed freezer door
Model
SE-LKKSM-L350
Maximum door size
Width: 1,250-5,000 mm / 4.10-16.40 ft; Height: 1,500-5,000 mm / 4.92-16.40 ft
Required installation clearance
Single-track side space: 150 mm / 5.9 in; track + motor side space: 400 mm / 15.7 in; headroom above opening: 500 mm / 19.7 in
Working temperature
-1 C to -28 C / 30 F to -18 F, with heated guide structure for anti-freeze operation
Opening speed
0.4-0.8 m/s / 1.31-2.62 ft/s, adjustable
Closing speed
0.3-0.5 m/s / 0.98-1.64 ft/s, adjustable according to site conditions
Door curtain
Imported brand base fabric, approx. 0.8 mm / 0.031 in thick, with added insulated cotton layer; finished thickness approx. 12 mm / 0.47 in
Frame material
1.8 mm / 0.071 in thick stainless steel or sprayed steel frame, with aluminum alloy rail profile
Guide rail
Aluminum alloy rail, dual-row PVC sealing, low-voltage track heating system to help prevent condensation and freezing
Lifting method
Twin-shaft roller winding system
Limit device
Multi-turn absolute encoder limit system with power-off memory, high precision and no accumulated error
Wind resistance
Grade 4, with internal anti-wind reinforcement; suitable for manual reset after derailment
Safety performance
Infrared safety light curtain and airbag bottom edge. If an object is detected during closing, the door stops and returns to the open position.
Protection grade
IP54 control box, compliant with common electrical safety requirements
Power supply
220 V, 0.75 kW-1.5 kW / approx. 1.0-2.0 HP, 50 Hz
Control system
German-brand FROG PUPIL intelligent control system for industrial high speed doors, with variable-frequency energy-saving operation, real-time status display and fault location display
Activation options
Standard push button box; optional radar sensor, loop detector, wireless switch, remote control, access control or keypad activation
Reserved interfaces
Remote control, automation equipment linkage and common project signal interfaces are reserved in the control system
Project Gallery
Installed product views
Real installation photos show insulated cold room doors in cold-room panels, conveyor passages and insulated access points.
Cold storage opening with side controlsDouble-door temperature buffer areaInsulated room entrance system
Applications
Where these freezer doors are used
Cold storage warehousesCold storage warehouse doors and warehouse cold room door systems support frequent forklift and pallet traffic while reducing temperature fluctuation.
Food processing plantsCooling doors separate chilled production zones, packing rooms and logistics corridors.
Automated conveyor linesAutomatic cold storage door and high speed cold storage doors can be installed around conveyor openings for controlled material flow.
Need SEPPES high speed freezer doors for your project?
As a cold storage doors manufacturer, SEPPES can recommend suitable insulated cold room doors based on opening size, temperature range, wall structure and traffic method.
