10.21.2025 / 6-minute read

Heavy-Duty Industrial Freight Elevator for Smart Manufacturing

Overview

Client: Dongtu Technology Co., Ltd.

Core Business: Focuses on networked industrial control total solutions, dedicated to establishing an internet-based new generation of industrial control architecture. Its parent company’s products are used in semiconductor etching, cleaning equipment, and are involved in defense, robotics, and other cutting-edge fields.

Corporate Identity: A wholly-owned subsidiary of Beijing Dongtu Technology Co., Ltd., a prominent player in industrial networking. It is recognized as a Hubei Provincial “Specialized, Refined, Unique, and Innovative” SME and a National High-Tech Enterprise.

Core Requirement Analysis:
The client required a heavy-duty industrial freight elevator for its high-tech R&D and manufacturing environment. Their needs extended far beyond basic goods lifting, emphasizing seamless integration with their proprietary control system, high reliability, and operational safety. This was critical for transporting precision instruments, sensitive components, and heavy equipment between floors of their factory, laboratory, or warehouse.

Basic Parameters

Parameter	Specification
Rated Load Capacity	1500 kg
Travel Height	6100 mm
Platform Size	1800 mm (W) × 2100 mm (D)
Car Configuration	Diamond-mesh enclosure, 2.2m clear internal height, balancing visibility and safety.
Landing Door Configuration	3 sets of PVC rapid-roll doors (2 landing doors + 1 car gate) for enhanced operational efficiency.
Loading Direction	1800mm wide, unilateral access.
Safety Features	1.8m high optical safety light curtain at car entrance, interlocked power cutoff upon door opening, external diamond-mesh guarding.

Key Customization Highlights

Reinforced Structure: The 2-cylinder, 4-guide rail system with 100H national standard guide rails and a 120*60*4mm platform frame ensures maximum stability and structural integrity under frequent heavy-duty operation.
Premium Components: Critical electrical components like the power unit, motor, and contactors/relays feature internationally renowned brands (Siemens, Schneider), guaranteeing long-term, reliable performance.
Seamless System Integration: A standout feature of this project is that the “brain” of the control system—the PLC—was supplied by the client (Dongtu Technology). Our task was to perfectly interface all the elevator’s actuators and sensors with this proprietary control system, fully meeting the client’s need for unified management and data acquisition within their intelligent control ecosystem.

Technical Integration Highlights

Deep Control-Level Integration: By interfacing with Dongtu’s own PLC, this freight elevator is no longer a standalone logistics device but an integrated component of their unified Industrial Internet of Things (IIoT) platform. This allows elevator operational data, status monitoring, and diagnostics to be incorporated into higher-level data dashboards, enabling predictive maintenance and plant-wide intelligent management.
Safety and Efficiency Prioritized:
- The “interlocked power cutoff upon door opening” feature ensures the elevator can only operate when all landing and car doors are fully closed, fundamentally eliminating operational hazards.
- The added wireless remote control provides significant convenience for equipment debugging, on-site maintenance, and flexible operation under special conditions.
- The optical safety light curtain at the car entrance creates a 1.8-meter high detection field, effectively sensing obstacles in the access area and providing an extra layer of safety for personnel.