1.19.2026 / 6-minute read

BT4 Explosion-Proof Elevating Platform for Flavors & Fragrances Industry – Custom Stainless Steel Clean Guide Lift Case | Ogawa Project

Overview

This project involved customizing a guided elevator platform for Ogawa Fragrances.

As a leading global flavor and fragrance manufacturer, Ogawa’s production environment demands equipment that far exceeds standard industrial requirements for safety, cleanliness, and corrosion resistance.

The core objective was to deliver a customized vertical handling solution that fully complies with high-end industry standards, excelling in explosion safety, cleanliness, and durability.

Basic Parameters

Parameter Category	Specific Configuration
Basic Parameters	Rated Load: 480kg; Travel Height: 5600mm; Floors: 2 stops, 2 landings
Dimensions	Car Interior: 1300mm(W) × 1500mm(D) × 2200mm(H); Pit: 2000mm × 1700mm × 200mm
Core Structure	Structure Form: 2 cylinders, 4 guides; Entry/Exit Direction: One side (1500mm side)
Safety Rating	Equipment Rating: Explosion-Proof BT4; Control System: Phase-loss protection, door interlock power cut-off
Primary Material	Full 304 Stainless Steel (guides, platform frame, panel, lifting frame, cladding, etc.)
Drive System	Power Unit: 3kw/380V Explosion-Proof BT4 rated, low-noise vane pump (<80 dB)
Door System	Stainless steel double doors with explosion-proof electromagnetic lock
Special Configurations	Explosion-proof valves in hydraulic circuit; static electricity bonding for all equipment; stainless steel enclosure for power unit; entrance bollards.

Challenge

Explosion Safety Hazard: The primary risk was the potential presence of flammable gases, vapors, or combustible dusts during flavor manufacturing, which standard electrical equipment could ignite.
Cleanliness and Contamination Control: The production process is extremely sensitive to foreign odors and particulate contamination. Traditional hydraulic systems pose a risk of oil leaks or fugitive emissions that could compromise product integrity.
Corrosion from Processing Agents: The equipment would be exposed to various raw materials, flavor compounds, and cleaning agents that can aggressively corrode ordinary carbon steel.
Indoor Noise Pollution: With the platform installed inside a working facility, excessive operational noise from the power unit would disrupt the quiet work environment and cause employee discomfort.
Precision Installation in an Active Plant: The installation needed to be precisely executed within an existing building structure without disrupting ongoing production activities, requiring flawless planning and integration.

Solutions

Comprehensive Explosion-Proof Design: The entire system was engineered to BT4 explosion-proof standards. Every electrical component—from the 3kW motor and power unit to the control buttons, lighting, and door electromagnetic locks—was certified for use in hazardous atmospheres. Additional explosion-proof valves were installed in the hydraulic circuit as a critical secondary safety measure.
Leak-Proof and Sealed Enclosure: A high-integrity sealing system was employed for all hydraulic connections to guarantee zero fluid leakage. Crucially, the hydraulic power unit was fully encased within a sealed stainless steel enclosure, effectively isolating any potential oil vapor or odor from the sensitive production area.
Full Stainless Steel Construction: All critical structural and surface components that contact the environment or materials—including the platform, guide rails, structural frame, and the interior car cladding—were fabricated from AISI 304 stainless steel. This material offers superior resistance to a wide range of chemical corrodents and enables easy cleaning.
Low-Noise Drive System: The specification mandated the use of a specially designed low-noise vane pump within the power unit. Combined with optimized mounting and housing, this configuration ensures the system operates at noise levels consistently below 80 decibels, making it suitable for indoor use.
Pre-Engineered Installation Kit: The solution included detailed, site-specific pre-installation requirements, such as exact pit dimensions (2000*1700*200mm) and custom anchor bolt plans. This pre-engineering, based on precise site surveys, allowed for a swift, accurate, and minimally disruptive installation process.

Installation

Precision Pre-Planning
- Site verification was conducted based on the exact pit dimensions (2000*1700*200mm) specified in the contract, with guidance provided for embedded parts to ensure the foundation was correctly prepared on the first attempt.
- Coordination on explosion-proof power interfaces and on-site logistics pathways paved the way for efficient construction.
Phased Professional Execution
- Structural Assembly: Precise assembly of the “2-cylinder, 4-guide” stainless steel main frame, ensuring vertical alignment and stability.
- Explosion-Proof System Integration: Strict installation of all BT4-rated electrical components (power unit, control cabinet, lighting, electromagnetic locks) according to standards, completing hydraulic line connections and static electricity bonding.
- Safety & Finishing: Installation of the “door interlock power-cutoff” safety system, entrance bollards, and stainless steel exterior cladding, integrating functionality with aesthetics.
Rigorous Commissioning & Handover
- Conducted performance tests under full load, safety interlock tests (e.g., door power cut-off), and explosion-proof integrity checks.
- Provided operator training and key documentation (e.g., explosion-proof certificates, manuals) for final client sign-off.