Wayside Rail Lubricator

Product

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A trackside dispenser applying lubricating grease to the rail head when passing train wheels trigger the applicator.

Lubricant type	Railway-grade grease (NLGI grade 2–3)
Reservoir capacity	20–100 kg depending on track tonnage
Dispense trigger	Inductive or mechanical wheel sensor
Grease output per trigger	50–500 g per passing train
Pump flow rate	0.5–2 litres/min at operating pressure
Motor power	0.25–1 kW fractional HP
Applicator nozzles	2 (one per rail)
Nozzle spray pattern	Direct line to rail head, width ~50–100 mm
Grease replenishment	Monthly to quarterly refilling depending on tonnage
Operating temperature	−20 to +50°C
Service life	1–3 years between major overhauls
Standards	Railway infrastructure management (RIM) guidelines
Direct parts	6
Total parts	56
Class	Product

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Overview

A wayside rail lubricator is a trackside dispenser applying grease to the rail head as trains pass over. On heavily-trafficked routes with tight curves, rail wear accelerates due to friction. Applying a thin grease film reduces friction, heat generation, and noise, and extends rail life.

How it works

The Wheel Detection Sensor is installed at the trackside, positioned to detect approaching wheels. As the leading wheel passes, the Sensor Element (inductive proximity sensor or mechanical contact) sends a pulse signal to the control board.

The Pump Drive Motor turns the Gear Pump, which draws grease from the reservoir and pressurises it at 1–5 bar. The pressurised grease flows through control valves into the nozzles, which spray a fine stream onto the rail head.

The pump runs for a precise duration (typically 0.5–2 seconds), dispensing 100–500 g of grease per trigger event.

Wayside Rail Lubricator parts and their functions

6 top-level parts · 56 parts in total · full bill of materials below

Wayside Rail Lubricator parts diagram: 1 grease reservoir, 2 grease pump motor, 3 applicator bar assembly, 4 wheel detection sensor, 5 control & timing board, 6 trackside support frame. 56 parts in 6 top-level items. — Wayside Rail Lubricator parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.

#	Part	Qty	What it does
1	Grease Reservoir 4 parts	1×	Grease storage tank
2	Grease Pump Motor 4 parts	1×	Electric grease pump
3	Applicator Bar Assembly 3 parts	1×	Spray heads above the rail
4	Wheel Detection Sensor 3 parts	1×	Wheel-activated sensor
5	Control & Timing Board 3 parts	1×	Pump timing and diagnostics
6	Trackside Support Frame 3 parts	1×	Trackside support structure

3D model

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Build & assembly graph

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Bill of materials for Wayside Rail Lubricator

6 top-level lines · 43 rows shown · 56 parts total · indented to 3 levels

#	Item / sub-assembly	Part no.	Qty/assy	Ext. qty	Parts	Type
1	Grease Reservoir 4 parts	rail-lubricator-reservoir-assembly	1×	1	4	assembly
1.1	Tank Body	rail-lubricator-tank-body	1×	1	·	part
1.2	Filler Cap	rail-lubricator-filler-cap	1×	1	·	part
1.3	Drain Plug	rail-lubricator-drain-plug	1×	1	·	part
1.4	Suction Tube	rail-lubricator-suction-line	1×	1	·	part
2	Grease Pump Motor 4 parts	rail-lubricator-pump-unit	1×	1	30	assembly
2.1	Pump Drive Motor 4 parts	rail-lubricator-pump-motor	1×	1	24	assembly
2.1.1	Stator Assembly 3 parts + deeper ›	stator-assembly	1×	1	3	assembly
2.1.2	Rotor Assembly 4 parts + deeper ›	rotor-assembly	1×	1	19	assembly
2.1.3	Ball Bearing	ball-bearing	1×	1	·	part
2.1.4	Oil Seal	oil-seal	1×	1	·	part
2.2	Gear Pump 3 parts	rail-lubricator-gear-pump	1×	1	4	assembly
2.2.1	Helical Gear Pair	gear-pair	1×	1	·	part
2.2.2	Ball Bearing	ball-bearing	2×	2	·	part
2.2.3	Fastener Set	fastener-set	1×	1	·	part
2.3	Pressure Relief Valve	rail-lubricator-pump-pressure-relief	1×	1	·	part
2.4	Discharge Line	rail-lubricator-pump-discharge-line	1×	1	·	part
3	Applicator Bar Assembly 3 parts	rail-lubricator-applicator-bars	1×	1	6	assembly
3.1	Applicator Nozzle	rail-lubricator-applicator-nozzle	2×	2	·	part
3.2	Applicator Boom 2 parts	rail-lubricator-applicator-boom	1×	1	2	assembly
3.2.1	Sheet Metal Panel	sheet-panel	1×	1	·	part
3.2.2	Fastener Set	fastener-set	1×	1	·	part
3.3	Nozzle Flow Valve	rail-lubricator-nozzle-valve	2×	2	·	part
4	Wheel Detection Sensor 3 parts	rail-lubricator-trigger-sensor	1×	1	3	assembly
4.1	Sensor Element	rail-lubricator-sensor-head	1×	1	·	part
4.2	Sensor Housing	rail-lubricator-sensor-housing	1×	1	·	part
4.3	Connector	connector	1×	1	·	part
5	Control & Timing Board 3 parts	rail-lubricator-control-electronics	1×	1	8	assembly
5.1	Control Board 4 parts	rail-lubricator-control-board	1×	1	5	assembly
5.1.1	Bare PCB	pcb-bare	1×	1	·	part
5.1.2	Microcontroller	mcu	1×	1	·	part
5.1.3	SMD Passive (R/C/L)	smd-passives	1×	1	·	part
5.1.4	Connector	connector	2×	2	·	part
5.2	Power Contactor 2 parts	rail-lubricator-power-relay	1×	1	2	assembly
5.2.1	Relay	relay	1×	1	·	part
5.2.2	Fastener Set	fastener-set	1×	1	·	part
5.3	Relay	relay	1×	1	·	part
6	Trackside Support Frame 3 parts	rail-lubricator-mounting-frame	1×	1	5	assembly
6.1	Support Post 2 parts	rail-lubricator-post-assembly	1×	1	2	assembly
6.1.1	Sheet Metal Panel	sheet-panel	1×	1	·	part
6.1.2	Fastener Set	fastener-set	1×	1	·	part
6.2	Mounting Bracket	rail-lubricator-mounting-bracket	2×	2	·	part
6.3	Fastener Set	fastener-set	1×	1	·	part

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Sourcing: possible vendors

Browse the supplier directory → Prices, MOQ, and lead times are algorithmic estimates, not quotes, and not claims about these companies. Company mappings are curated by keyword; est. price band $500k–$60M. How estimates work

Vendor	HQ	Specialty	MOQ	Lead time
🇨🇳CRRC crrcgc.cc ↗	Beijing, CN	Rolling stock & rail systems	made to order	40–72 wks
🇫🇷Alstom alstom.com ↗	Saint-Ouen, FR	Rail rolling stock	made to order	40–72 wks
🇩🇪Siemens Mobility mobility.siemens.com ↗	Munich, DE	Rail systems	made to order	40–72 wks
🇨🇭Stadler Rail stadlerrail.com ↗	Bussnang, CH	Rail rolling stock	made to order	40–72 wks
🇺🇸Wabtec wabteccorp.com ↗	Pittsburgh, US	Rail equipment	made to order	40–72 wks

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