Introduction to Buried Plate Chain Conveyor Production Line for Tricycles—Tricycle Slat Conveyor Production Line

Buried Tricycle Slat Conveyor Assembly Line/Production Line is a heavy-duty underground assembly line designed for electric and fuel tricycles. The chain plate is embedded in the ground and level with the floor, driven by double-row heavy-duty chains and PLC control. It carries frames and chassis for stable, beat-type assembly, with a load capacity suitable for clients’ tricycles. Featuring compact layout, safe operation, high durability and easy maintenance, it is widely used in the full-process assembly of freight and passenger tricycles.
Tricycle Assembly Lines/Production Lines are Suitable to Produce/Assemble 3 wheeler, tricycles, and so on.(If customers request, we also can design the Production Line/Assembly Line suitable for 2 wheeler and 3 wheeler depends on exact vehicle models.)(If clients have more requirements or want to produce the other tricycles, welcome to contact us.)

A buried plate chain conveyor production line (also known as floor chain / pit-type plate chain line) is a heavy-duty, ground-embedded assembly line specially designed for electric and fuel tricycles. Its core feature is that the load-bearing chain plates are embedded under the workshop floor, enabling stable, safe and efficient continuous assembly of complete vehicles.
1. Basic Definition & Working Principle
- Definition: The main structure of the entire line is pre-buried in a ground pit, with the chain plates/slats flush with the floor. Driven by double-row heavy-duty chains, it carries tricycle chassis or complete vehicles for full-process assembly.
- Principle: A motor and reducer drive sprockets to pull double-row heavy-duty side-bend chains moving along guide rails inside the pit. High-strength load-bearing steel plates (slats/tooling plates) fixed on the chains support the front and rear axles or frames of tricycles, realizing continuous or beat-type conveying.
2. Core Structure Components
1) Pit-type Line Body & Load-bearing System
- Pit frame: Welded with channel steel or square steel, pre-buried underground to support the whole line.
- Double-row heavy-duty chains: Custom single-side bend roller chains, wear-resistant and high-tensile.
- Load-bearing slats/steel plates/tooling plates: thick steel plates equipped with V-shaped positioning fixtures or supports for front and rear axles, supporting the vehicle body and preventing deviation.
2) Drive & Tensioning System
- Drive unit: Variable-frequency motor + hard-tooth surface reducer, can be continuous / intermittent beat.
- Tensioning device: Screw / heavy hammer type at the end, automatically compensating for chain wear and elongation.
3) Guide Rails & Guidance
with guide rails inside the pit, with chains running on rollers, featuring low resistance, stable operation and low noise.
4) Safety & Auxiliary Systems
- Pit cover plates, emergency stop cables, limit / photoelectric sensors.
- Supporting air pipes, power sockets, tool hanging rails, lighting and process boards.
5) Electrical Control System
PLC control, supporting continuous operation, beat stop, fault alarm and counting functions.

3. Main Technical Parameters (For Tricycles)
(The following specification is as an example, can be customized according to clients’ tricycle type)
- Load capacity: according to clients’ tricycles
- Line length: 40–80 m (could be 3.6-5 m per station) or according to clients’ tricycle data
- Running speed: can be adjustable by frequency converter
- Chain plate width: 800–1200 mm (adapted to tricycle wheel track)
- Fixture: Special positioning fixtures and anti-slip supports for front and rear axles
4. Core Features & Advantages
- Optimal space usage: Buried design keeps the floor flat with unobstructed passages for logistics and pedestrians.
- Heavy-duty & stable: All-metal structure with double-row load-bearing ensures no vehicle body shaking, high assembly precision and safety.
- Comfortable operation: Tooling plates flush with the floor allow workers to assemble standing, reducing bending and fatigue.
- Durable & easy maintenance: Wear-resistant chains and steel plates, pit protection, long service life, easy cleaning and inspection.
- Process adaptability: Supports the whole process from chassis pre-assembly, frame assembly, electrical / engine / rear axle / tire installation to commissioning, inspection and offline.
- High flexibility: Quick-change fixtures enable mixed-line production of various electric / fuel tricycles.
5. Typical Process Flow (Tricycle General Assembly)
- Loading station: Hoist chassis / frame onto tooling plates and fix positioning.
- Chassis assembly: Install rear axle, engine / motor, shock absorber, fuel tank / battery.
- Frame assembly: Connect and fasten frame and chassis.
- Body panel installation: Install handlebars, seats, cargo boxes and guard plates.
- Electrical system: Wiring, instrument, lighting, switch and harness fixing.
- Tire & brake assembly: Wheel installation, inflation and brake adjustment.
- Inspection & commissioning: Test lighting, braking, steering, electrical system and power performance.
- Offline station: Transfer qualified vehicles; unqualified ones for rework.
6. Application Scenarios
Mass general assembly of electric tricycles, fuel tricycles, freight / passenger tricycles in workshops requiring clean floors, high space utilization, safe and comfortable assembly, and heavy-duty stability.

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