Overview
The Elevator Motor Oil Cup is a precision gravity-fed fluid lubricant dispenser installed directly onto the traction machine bearings and guide rail lubrication systems of passenger and freight elevators.
Product Specification
|
Item |
Specification |
|
Oil Capacity |
50ml / 80ml / 120ml / 200ml |
|
Thread Types |
M10x1 / M12x1.5 / 1/8" NPT / 1/4" G-Thread |
|
Material Options |
H59 Brass / 6061-T6 Aluminum (anodized) |
|
Wall Thickness |
≥ 2.5 mm (polycarbonate reservoir) |
|
Temperature Range |
-20°C to +80°C |
|
Oil Level Marking |
Molded graduation, 10ml increments |
|
Reservoir Type |
Transparent polycarbonate housing |
Key Features
Micro-metering needle valve with a 0.5mm pitch thread allows precise lubrication control down to 1 drop per 10 minutes.
Integrated steel spring lock prevents the drip-rate adjustment screw from shifting under harmonic vibrations in the elevator shaft.
Sintered bronze filter element (40-micron rating) embedded in the outlet blocks micro-particles from entering the bearing raceway.
Top-fill flip cap features a dust-proof ventilation hole that balances internal pressure while blocking motor carbon dust ingress.
Dual-seal NBR gaskets installed at the junction between the polycarbonate cup and metal base eliminate fluid weeping.
Application & Compatibility
Compatible with legacy and modern Otis gearless traction machines (including PM series).
Fits Schindler 3300/5500 guide rail lubrication arrays.
Rated for high-load freight elevator guide shoe lubrication at speeds up to 4.0 m/s.
Approved for use with standard wire rope lubricants, including Nyrosten and Fuchs specialized elevator oils.
Suitable for both overhead traction machine rooms and basement-drive elevator configurations.
Quality Control
100% of units undergo a 0.2 Bar pneumatic pressure decay test for 30 seconds to verify structural sealing.
Batch tested via a 5,000-hour accelerated UV exposure matrix to prevent housing embrittlement and cracking.
Volumetric dispensing tolerance maintained within +/-5% across a continuous 72-hour test run.
Impact resistance verified via a 1.0 kg steel ball drop test from 0.5 meters onto the cup flank.
Automated optical sorting machines monitor critical dimensions to a +/-0.02mm tolerance, securing a defect rate under 350 PPM.
Commercial Terms
|
MOQ |
500 units for standard threads; 2,000 units for custom thread configurations. |
|
Lead Time |
15 business days for orders up to 5,000 units. |
|
Trade Terms |
FOB Shanghai, CIF Rotterdam, and DDP Los Angeles. |
|
Payment Terms |
30% TT advance, 70% balance against B/L copy. |
|
Packaging |
ISTA-3A drop-tested cartons with individual molded HDPE foam slots. |
|
Volume Rebate |
3% discount applies once cumulative annual volume exceeds 20,000 units per fiscal year. |
Compliance & Certifications
Compliant with EU Directive 2011/65/EU (RoHS 2.0) and REACH EC No 1907/2006.
Manufactured in an ISO 9001:2015 and ISO 14001:2015 certified facility.
Base materials conform to the safety objectives of EN 81-20:2014 and EN 81-50:2014 standards for elevator components.
Polymer shell flammability rating meets UL 94 V-2 standards.
Supplied with Manufacturer's Certificate of Conformity (CoC) and Material Mill Test Reports (MTR) per EN 10204 3.1.
Passes 48-hour neutral salt spray (NSS) testing per ISO 9227 for coastal infrastructure applications.
FAQ
Q: What is the expected service life under continuous elevator operation?
A: Under standard passenger elevator duty cycles, the unit typically operates reliably for 7–10 years. In high-dust machine rooms or high-vibration freight shafts, replacement may occur closer to the lower end of this range.
Q: How often should the oil cup be inspected or maintained?
A: Standard inspection interval is every 12 months in normal environments. In heavy-duty freight elevators or high-vibration shafts, a 6–9 month check is recommended, focusing on seal condition and flow stability.
Q: How often does the reservoir need refilling in real operation?
A: At minimum drip rate, a 120ml reservoir lasts approximately 8–12 weeks under 20-hour daily operation. High-speed freight elevators (≥2.5 m/s) typically require refilling every 4–6 weeks.
Q: Which material should we specify - brass or aluminum?
A: Brass (H59) is recommended for high-vibration freight applications and environments above 60°C due to superior thread durability.
Q: Can the drip rate be calibrated after installation?
A: Yes, calibration is performed via micro-adjustment screw under no-load flow conditions and stabilizes within 30–60 minutes.
Q: Which oil viscosity range ensures stable dispensing performance?
A: Stable operation is typically achieved with lubricants in the ISO VG 32–68 range. Lower viscosity oils increase drip rate variability; higher viscosity oils reduce flow consistency, particularly at lower shaft temperatures.
Q: What are the most common failure modes in real elevator environments?
A: The most frequent issues are seal hardening over time and flow inconsistency from particulate contamination.
Q: Is there a recommended replacement schedule for seals and internal components?
A: NBR seals are recommended for replacement every 3–5 years depending on temperature exposure. Internal sintered filter elements typically require cleaning or replacement every 12–18 months depending on oil contamination levels.
Q: Does vibration in the elevator shaft affect dispensing accuracy?
A: The integrated steel spring lock minimizes adjustment drift under continuous vibration. Extreme resonance conditions can cause minor deviation over long cycles - periodic flow verification is recommended in high-vibration freight shafts.
Q: What happens if incompatible oil is used in the system?
A: Incompatible oils may cause inconsistent droplet formation or clogging of the 40-micron sintered filter, gradually reducing flow stability.
Hot Tags: elevator motor oil cup, China elevator motor oil cup manufacturers, suppliers, factory, elevator cabin structure, elevator car door light curtain, elevator car floor covering, elevator car handrail support, elevator car safety gear assembly, elevator car sling