What the Lincoln 85435 Is
The Lincoln 85435 is an air-operated single-stroke grease pump with integrated controls, configured for CENTRO-MATIC single-line injector lubrication circuits and designed for 240 VAC control voltage.
Lincoln is a trademark of its respective owner.
This is an aftermarket pump, not manufactured, sponsored, or endorsed by Lincoln.
85435 designations are for cross-reference identification only.
Specifications
| Part number | 85435 |
| Type | Air-operated single-stroke grease pump with controls and air return |
| Control voltage | 240 VAC; identical to the 85434 except voltage |
| Pump ratio | 31:1 |
| System pressure range | 83-240 bar |
| Maximum output | 18.7 cm3 |
| Family | Grease versions 85434-85437 |
How a CENTRO-MATIC Circuit Works
The CENTRO-MATIC system operates as a single-line injector lubrication circuit. The pump builds pressure in one main supply line connected to all metering injectors. When line pressure rises to the injector operating threshold, each injector discharges a measured shot of grease to its lubrication point. The line then relieves pressure so every injector can reset and prepare for the next cycle. In this arrangement, the pump creates pressure while the injectors decide the dose delivered at each point.
Pump Output versus Injector Dose
The 18.7 cm3 figure is the pump-side maximum output per stroke. The actual grease volume each bearing receives is set by the injector, not the pump. A system must have the number of injectors matched to the pump output so total demand does not exceed available volume. The correct approach is to sum the injector outputs per cycle and confirm that total stays within the pump capacity.
85435 or 85436
The 85435 is the 240 VAC version of the 85434, operating at 31:1 with a maximum output of 18.7 cm3. The 85436 is a different configuration at 25:1 with a maximum output of 35.2 cm3. Selection between the two follows circuit demand and available control voltage. If the circuit requires a larger volume per cycle, the 85436 may be the better match; if the demand is lower and the supply is 240 VAC, the 85435 applies.
Related Parts
For metering at the point, the SL-1 grease injector is one of the compatible injector families used with this pump family. If you are comparing broader platform options, review our range of air-operated grease pumps to see how this configuration fits alongside other ratios and outputs. Before finalizing circuit volume, our guide to grease pumps explains how pump displacement and injector demand interact. You can also request configuration help through the quotation form when you are ready to confirm the pump and injector match.
Frequently Asked Questions
What is the Lincoln 85435?
The 85435 is an air-operated single-stroke grease pump with integrated controls and air return. It is built as an aftermarket replacement for the Lincoln 85435 CENTRO-MATIC configuration.
What is the difference between the 85435 and the 85434?
The only documented difference is control voltage. The 85435 is the 240 VAC version of the 85434, and all other pump specifications remain the same.
What does 31:1 mean?
The 31:1 ratio describes air-to-grease pressure multiplication inside the pump. Lower air pressure is multiplied to produce higher grease pressure in the main line.
What does the maximum output mean?
The maximum output of 18.7 cm3 is the pump-side displacement per stroke. It is not the dose each bearing receives, because injectors meter that amount.
Which injectors pair with this pump?
Paired injector families are SL-1, SL-32, SL-33, SL-V, and SL-V XL. The injector count and settings must be matched to the pump output.
How is the dose per bearing set?
The dose per bearing is set by the injector at that lubrication point. The pump only builds line pressure; it does not meter individual bearing volume.
Should I choose the 85435 or the 85436?
The 85435 runs at 31:1 with an 18.7 cm3 maximum output. The 85436 runs at 25:1 with a 35.2 cm3 maximum output, so circuit demand decides.
What controls are integrated into the 85435?
The pump includes controls and air return as an integrated single-stroke configuration. Any detailed control settings or voltage limits should be confirmed from the nameplate and documentation.
Can this pump feed oil circuits?
This model belongs to the grease versions 85434 through 85437. If the medium is oil, confirm from the nameplate and documentation before use.
How do I order or get support?
IsoHiTech Lubrication Systems, founded in 2023, engineering since 2006, builds and supports every unit. Email inquiry@isohitech.com for specifications and a quotation.
You can also request pricing through the quotation form. A support engineer will confirm configuration and injector matching.
