November 14, 2025
Nice TUB 4000 Sliding Gate Operator
The Nice TUB 4000 sliding gate operator is a premium heavy‑duty solution designed for large gates, industrial installations and commercial sites. It’s built to handle significant loads — gates up to around 4,000 kg — while offering reliable automation, safety features and long‑term durability in challenging conditions.
If you’re in Kenya and planning to automate a large perimeter gate for an estate, factory or high‑traffic entrance, the TUB 4000 is a top contender.
Overview of the Nice TUB 4000
Here’s a quick snapshot of what sets the TUB 4000 apart:
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Designed for sliding gates up to 4,000 kg in weight.
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Operates on a three‑phase 400 V AC supply (industrial grade).
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Built-in control unit for programming, safety diagnostics and advanced features.
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Robust mechanical design: electromechanical irreversible gear motor, metal/bronze gears for longevity and quieter operation.
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Adjustable features: slowdown, programmable functions, optional accessory expansion.
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Typically used for industrial entrances, commercial perimeters or large residential gates needing serious capacity and durability.
Why Choose a Heavy‑Duty Sliding Gate Operator
When you have a large gate — whether because of width, mass, usage frequency or security demands — a light domestic operator won’t suffice. Here’s why the TUB 4000 (and similar heavy‑duty models) make sense:
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Capacity & Strength: Handles gates up to ~4 t in mass, making it suitable for large metal or steel gates.
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Durability: Designed for high-traffic usage, frequent cycles, and more demanding environments.
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Safety & Reliability: With heavy gates you need stronger motors, better braking and intelligent controls to avoid damage or accidents.
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Future-proofing: For growing properties, heavy load gates or commercial sites, investing in high capacity now avoids need to upgrade prematurely.
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Security: Larger gates are often found at commercial/higher-security sites, so a robust automation system is a smart investment.
Components of the Nice TUB 4000 System
To deploy the TUB 4000 successfully you’ll interact with these main components:
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Motor Unit / Gearbox: The core electromechanical drive mechanism, mounted for sliding motion and delivering the force.
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Control Unit: Provides logic, safety, switching, and programming.
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Rack & Pinion Mechanism: Metal or plastic rack affixed along the gate length, engages the gearbox pinion to slide the gate.
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Safety Sensors & Accessories: Photocells, safety edges, manual release lever, slowdown settings, remote controls, etc.
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Manual Release / Emergency Mechanism: In case of power failure or fault, manual operation is possible.
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Foundation / Mounting Hardware: Ensuring proper mounting base, alignment and supports is key.
Technical Specifications
Here are key specs for the TUB 4000 — these serve as a benchmark when comparing or planning installation:
| Specification | Value (approx) |
|---|---|
| Maximum Gate Weight | Up to ~ 4,000 kg |
| Power Supply | 400 V AC, three‑phase |
| Output Power | ~580 W absorbed, peak thrust over 400 Nm |
| Speed | ~0.16 m/s (approx 9.6 m/min) |
| Duty Cycle | Up to approx 42 cycles per hour |
| Protection Class | IP 54 (or higher depending on variant) |
| Operating Temperature Range | –20 °C to +50 °C |
Installation Guide
Installing a system like the TUB 4000 involves careful planning and execution. Here’s a step-by-step overview:
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Site Survey & Preparation
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Measure the gate weight, length and travel path. Ensure the gate is well supported and glides smoothly.
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Check the foundation for the motor mounting plate: Must be strong, level, and secure.
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Ensure correct power supply is available (three‑phase 400 V if required).
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Confirm clear path for the rack along the gate length, and no major obstacles or uneven track.
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Motor & Control Unit Installation
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Mount the motor unit on its foundation pad, aligning it with the gate rack.
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Secure the control unit housing, connect incoming power, and wiring for accessories.
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Mount the rack firmly on the gate, ensuring straight alignment and correct engagement with the pinion.
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Wiring & Electrical Connections
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Ensure proper three‑phase supply and correct earthing/grounding.
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Connect safety devices, remote-receiver, end-of-travel switches or magnetic sensors.
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Set up manual release lever for emergency manual operation.
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Programming & Testing
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Program settings: slowdown, torque/force limits, open/close distances, safety logic, remote channels.
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Run several open/close cycles under full load to check smoothness, speed, reversal on obstacle, correct end stops.
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Test manual release and emergency operation.
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Commissioning & Handover
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Complete user instruction: How to operate, manual release, maintenance schedule.
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Provide documentation and warning signage.
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Maintenance Best Practices
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Inspect mounting bolts, rack teeth wear, motor alignment, gate travel smoothness every 3–6 months.
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Lubricate moving parts, including rack, pinion, hinges or rollers.
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Inspect wiring for wear, corrosion, proper earthing.
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Test safety devices: photocells, safety edges, manual release.
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Keep track clean of debris, dust or vegetation.
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Ensure housing remains sealed to protect from harsh weather.
Safety Features & Compliance
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Anti-crushing / obstacle detection: Gate reverses when excessive force is detected.
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Manual release lever: Allows manual operation during power failure.
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Electronic brake: Prevents uncontrolled motion.
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Built-in controls with diagnostics: Allows fault logging and monitoring of safety devices.
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Compliance: Designed for high-duty cycles and environmental protections.
Cost Considerations in Kenya
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Equipment cost: Premium due to high capacity and industrial design.
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Installation cost: Heavy gates require strong foundations and professional expertise.
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Power supply: Upgrade to three-phase may be necessary.
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Maintenance & spare parts: Budget for periodic inspections and parts replacement.
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Return on investment: Improved security and reduced manpower for gate operation.
Troubleshooting Common Issues
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Gate stalls or moves slowly: Check rack alignment, debris, motor overload, voltage drop.
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Remote not responding: Check batteries, signal interference, programming.
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Motor overheating: Duty cycle exceeded, mechanical binding, high ambient temperature.
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Gate doesn’t reverse on obstruction: Check sensor wiring, configuration, alignment.
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Excessive noise or vibration: Inspect rack and pinion, gear wear, foundation looseness.
Enhancing Security with the System
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Integrate with CCTV and access control for monitoring and logs.
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Enable remote monitoring and alerts for gate status.
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Link to existing perimeter fence or alarm systems.
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Use scheduled operation and lock-down modes.
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Heavy-duty build acts as a deterrent.
Comparative Analysis
| Feature | Nice TUB 4000 | Competitor Heavy Unit |
|---|---|---|
| Max Gate Weight | ~4,000 kg | Slightly less |
| Power Supply | 400 V AC three-phase | May vary |
| Control Unit Integration | Built-in control | May require separate board |
| Mechanical Build | Metal & bronze gears | Cheaper materials |
| Cost | High | Lower but less capacity |
| Duty Cycle/Usage | Up to ~42 cycles/hour | Lower duty cycle |
Customer Reviews & Use Cases
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Industrial sites: Smooth operation and reliable performance for 3–4 t gates.
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Commercial estates: Handles high traffic and heavy steel gates effectively.
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Coastal areas: Requires protective measures for humidity, dust, and salt exposure.
Frequently Asked Questions (FAQs)
Q1: Can it be used for typical residential gates?
A1: Yes, but it’s designed for very heavy gates and industrial supply.
Q2: What power supply is required?
A2: 400 V AC three-phase supply is common.
Q3: How often should maintenance be done?
A3: Every 3–6 months for inspection, annually for full check.
Q4: What happens during a power outage?
A4: Manual release lever allows gate operation; optional backup supply can be used.
Q5: Can it integrate with existing access control or CCTV systems?
A5: Yes, the control unit supports remote integration with access systems.
Q6: Is it suitable for harsh coastal environments?
A6: Yes, with additional protection for corrosion, sealing, and regular inspections.
Conclusion & Recommendation
The Nice TUB 4000 Sliding Gate Operator is ideal for heavy, high-usage sliding gates in industrial, commercial, or large residential properties in Kenya. Its strength, reliability, and safety features make it a worthwhile investment for large-scale automation projects. Proper site preparation, power supply, and maintenance are key to maximizing its performance.
