Introduction
The elevator blower is a specialized ventilation unit mounted on top of or within an elevator car to maintain continuous air circulation.
Product Specification
|
Item |
Key Specification |
|
Airflow Output |
250–450 CFM (425–765 m³/h) |
|
Noise Level |
38–45 dB(A) at 1 meter |
|
Electrical Input |
110V / 220V / 380V, 50/60Hz compatibility |
|
Power Consumption |
25–65W (high-efficiency motor) |
|
Static Pressure Capacity |
≤ 60 Pa |
|
Installation Tolerance |
±0.5 mm for ceiling integration |
Technical Performance
|
Model |
Rated Airflow (m³/h / CFM) |
Rated Speed (RPM) |
Noise Level [dB(A)] |
Rated Current (A) / Power (W) |
Recommended Lift Capacity |
|
EB-300A |
320 m³/h / 188 CFM |
1100 |
≤ 42 dB(A) |
0.22 A / 50 W |
≤ 1000 kg (Standard Passenger) |
|
EB-450A |
480 m³/h / 282 CFM |
1250 |
≤ 45 dB(A) |
0.28 A / 65 W |
1050–1350 kg (Commercial) |
|
EB-600H |
620 m³/h / 365 CFM |
1400 |
≤ 48 dB(A) |
0.38 A / 85 W |
≥ 1600 kg (Heavy-Duty / Bed Lift) |
Key Features
Dual-Bearing System: Equipped with Japanese NMB dual-shielded ball bearings rated for 50,000 hours of continuous operation, preventing oil leakage and reducing routine maintenance callbacks.
Reinforced Galvanized Steel Housing: Stamped from 1.5mm rust-resistant galvanized steel sheets to eliminate structural resonance and rattling noises at high RPMs.
Integrated Finger Guards: Heavy-duty chrome-plated steel wire grilles prevent accidental contact with moving parts during routine lift shaft maintenance.
Variable Speed Integration: Built-in multi-tap transformers allow field technicians to toggle between High, Medium, and Low speed settings via terminal jumpers.
Dynamic Balance Precision: Every rotor is dynamically balanced to ISO 1940 G2.5 standards, keeping structural vibration amplitudes below 0.15 mm/s for whisper-quiet lift operation.
OEM/ODM Capabilities
Custom Interface Engineering: Modification of mounting brackets and flange placements within 5 working days based on your 3D CAD/STEP models.
Custom Voltage & Emergency Power: Custom motor windings for non-standard regional power grids, including integrated 24V DC emergency backup power for power outages.
Private Labeling & Laser Etching: Direct on-line laser etching of client logos, custom part numbers, and tracking barcodes on the chassis for OEM brand consistency.
R&D Prototyping Speed: Fully operational functional samples delivered within 14 calendar days via our dedicated engineering workshop to accelerate your project timeline.
Noise Level Tuning (NC/NR): Custom tuning of fan blade frequency profiles to help your lift projects pass strict building acoustic codes and explicit NC/NR noise rating limits.
Quality Control & Compliance
100% On-Line Motor Inspection: Automatic routine testing of every single motor for insulation resistance, dielectric strength, and starting voltage before final assembly.
Acoustic Isolation Testing: Daily sound-pressure tracking conducted inside a semi-anechoic room with an ambient noise floor below 15 dB(A) to verify batch-to-batch consistency.
96-Hour Salt Spray Resistance: Brackets and housings undergo 96-hour ASTM B117 salt spray testing to prevent corrosion and paint peeling in coastal or high-humidity lift environments.
Global Certificate Compliance: Certified under Machinery Directive 2006/42/EC, EMC Directive 2014/30/EU, and UL 507 safety standards for electric fans.
Ingress & Flame Protection: Motor housings carry IP23/IP44 ratings against dust and water splashes; all plastic impellers meet UL 94 V-0 self-extinguishing protocols.
Comprehensive QC Traceability: Every shipped fan features a unique QR code linked directly to its specific factory test reports and dynamic balance data sheets.
Supply Chain Support
Minimum Order Quantity (MOQ): Low MOQ of 50 units for standard catalog models, and 200 units for custom engineered OEM batches.
Scale Production Output: Main assembly facility outputs up to 35,000 certified blower units per month to support high-volume contract releases and scheduled drop-ships.
Port Proximity & FOB Delivery: Factory location allows secure FOB delivery to Shanghai or Ningbo container ports within 48 hours of final packing.
Export-Grade Protective Packing: Individual multi-layer corrugated boxes consolidated on ISPM-15 certified heat-treated export wood pallets.
Strategic Buffer Inventory: Rolling stock of 2,000 standard chassis components maintained in-house to fulfill urgent, short-notice emergency orders.
After-Sales Service
24-Month Factory Warranty: Full component replacement or repair covering manufacturing and material defects, valid from the Bill of Lading (B/L) date.
10-Year Spare Parts Lifecycle: Guaranteed long-term availability for critical maintenance parts-including spare impellers, bearings, and capacitors-post-production.
24-Hour Technical Response: Global B2B ticketing system connects your technical team with an application engineer within 24 hours.
Advanced RMA (Pre-Shipment Replacement): Replacement units are dispatched immediately upon claim verification before returning the audited components, minimizing elevator downtime.
FAQ
Q: What elevator cabin sizes is this blower compatible with?
A: Designed for standard passenger cabins ranging from 800×1000 mm to 1600×2400 mm ceiling modules. For non-standard cabins, mounting brackets adjust within ±30 mm tolerance without structural modification.
Q: How long can the blower operate continuously in real applications?
A: Tested for up to 60,000 operating hours under rated load conditions, translating to 7–9 years of service in 12–16-hour daily operation buildings. In residential buildings running 8–10 hours daily, service life extends to 13–17 years.
Q: How is long-term noise performance maintained?
A: Dynamically balanced impellers and wear-resistant bearings limit noise increase to less than +3 dB(A) after 20,000 hours. Field measurements remain stable within 40–48 dB(A) over long operation cycles.
Q: What is the typical installation time per elevator?
A: A trained technician completes full installation in approximately 1.5–2.5 hours per cabin, including wiring, mounting, vibration alignment, and functional testing.
Q: How often does maintenance need to be performed?
A: Basic dust cleaning is recommended every 6–12 months depending on environment. Bearing inspection is required after approximately 25,000 operating hours, with no lubrication needed due to sealed bearing design.
Q: What happens if the blower fails during elevator operation?
A: Ventilation failure does not interrupt elevator operation. Replacement can be completed within 30 minutes through modular plug-in design.
Q: Can it operate under emergency power conditions?
A: Yes, the motor supports low-voltage restart and operates on 24V DC backup systems. Startup torque remains stable at 85% of nominal performance under emergency supply conditions.
Q: What is the actual power consumption in daily use?
A: Average consumption ranges between 28W and 58W depending on speed mode. For a typical elevator running 14 hours daily, annual energy consumption is approximately 140–280 kWh.
Q: Can non-contract buyers get emergency replacement units quickly?
A: A rolling buffer stock of 2,000 standard chassis units is maintained for urgent orders. Non-contract buyers typically receive standard catalog models within 5–7 business days via air freight.
Q: What documentation is available for elevator authority inspections?
A: Every unit ships with a QR-linked factory test report, dynamic balance data sheet, CE Declaration of Conformity, UL 507 certificate, and IP rating test records.
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