Replacement Vacuum Pump Vanes for Rotary Vane Pumps
CARBOLVE evaluates and manufactures replacement vacuum pump vanes for industrial rotary vane systems. We review replacement projects based on your pump manufacturer, existing OEM part numbers, technical drawings, physical samples, and pump operating data. Matching vane dimensions alone does not confirm material or pump compatibility—we help you verify the correct carbon, graphite, or application-specific specification for both dry-running and oil-lubricated vacuum pumps.
Send your pump manufacturer/model, OEM reference, vane photos, dimensions, original material information, quantity per set, and operating conditions.
- Pump Model & Part Number Review
- Drawing & Sample-Based Replacement
- Carbon & Graphite Vane Manufacturing
- Precision Dimensional Inspection
Carbon & Graphite Manufacturer
Pump Model Evaluation
Precision Machining
Custom Dimensions
Inspection Before Shipment
Find Your Replacement Vacuum Pump Vanes
Select the information you currently have available to start the identification and evaluation process.
By Pump Manufacturer & Model
You have the pump nameplate, manufacturer name, pump model, or series number.
By OEM Part Number
You have an original vane part number, service kit number, or existing supplier code.
By Vane Dimensions
You know the Length (L), Height/Width (H/W), and Thickness (T).
Warning: Dimensions alone do not establish material compatibility.
By Existing Material
You know the material grade, have material data sheets, or supplier markings.
Upload Vane Photos
Send photos of all sides, sliding faces, edges, markings, and pump nameplate.
Send a Physical Sample
A physical sample helps identify geometry but may not provide the complete original specification.
What Are Replacement Vacuum Pump Vanes?
A replacement vacuum pump vane is a sliding pump component selected or manufactured to replace a worn, damaged, obsolete, discontinued, or unavailable vane in an existing rotary vane vacuum pump.
A reliable replacement vane must reproduce the required material, dimensions, edge geometry, sliding behavior, rotor-slot fit, and pump-specific configuration rather than only matching the visible external size. Two vacuum pump vanes with identical external dimensions are not necessarily interchangeable.
How Do Rotary Vane Vacuum Pump Vanes Work?
- An eccentric rotor rotates inside a cylinder or stator.
- Vanes move radially in rotor slots.
- The vane tips maintain the designed relationship with the pump chamber wall.
- Adjacent vanes create changing-volume chambers.
- Gas enters as a chamber expands.
- Gas is transported and compressed toward the exhaust.
The vane simultaneously performs sliding, chamber separation, gas sealing, and wear compensation through radial movement.
Which Vacuum Pumps Use Sliding Vanes?
Replacement vacuum pump vanes are relevant only to vacuum pump designs that actually use sliding rotor vanes. Confirm the pump technology before requesting replacement vanes.
| Pump Technology | Uses Sliding Rotor Vanes? | Replacement Vane Relevance |
|---|---|---|
| Dry rotary vane | Yes | High |
| Oil-lubricated rotary vane | Yes | High |
| Vacuum / pressure combination vane pump | Yes | High |
| Rotary screw | No | Not this product |
| Claw pump | No conventional sliding vanes | Not this product |
| Scroll pump | No | Different consumables |
| Roots booster | No | Different rotor design |
Replacement Vanes for Dry vs Oil-Lubricated Vacuum Pumps
Never substitute a graphite or carbon vane into an oil-lubricated pump solely because the dimensions match. The original pump design and material specification must be verified.
Dry-Running Rotary Vane Pumps
Suitable designs frequently use carbon, carbon graphite, graphite, or other self-lubricating carbon-based materials because the vane operates without a conventional oil film in the pumping chamber.
- Exact material remains pump-model specific.
- Key considerations: Dry friction, dust, filtration, temperature, humidity.
Oil-Lubricated Rotary Vane Pumps
May use carbon composite, carbon-fiber-wrapped material, glass-fiber composite, phenolic composite, cast iron, aluminum, PEEK, or other pump-specific materials depending on the manufacturer.
- Material selection must follow original specification.
- Key considerations: Lubrication, oil compatibility, swelling, chemical exposure.
Replacement Vacuum Pump Vanes by Requirement
Select the type of replacement project you need assistance with.
Pump Model Replacement Vanes
Start from manufacturer + pump model.
OEM Part Number Replacement
Start from existing spare-part reference.
Drawing-Based Replacement
Use existing technical drawing.
Sample-Based Replacement
Use existing physical vane.
Graphite Replacement Vanes
For verified dry-running applications.
Carbon Graphite Vanes
For verified dry-running applications.
Obsolete Vacuum Pump Vanes
For discontinued or hard-to-source products.
Custom Replacement Vanes
Newly controlled CARBOLVE specification.
How to Identify the Correct Replacement Vacuum Pump Vane
The most reliable replacement identification usually combines several information sources. We recommend prioritizing information in this order:
- 1 Pump manufacturer and model
- 2 OEM / original vane part number
- 3 Original vane material or grade
- 4 Current drawing / service documentation
- 5 New or unused vane sample
- 6 Worn vane sample
- 7 Complete vane dimensions
- 8 Clear photographs
- 9 Rotor-slot information
- 10 Operating conditions
How to Measure a Vacuum Pump Vane
When measuring an existing vane, record whether the vane is new/unused, partially worn, heavily worn, or broken. Remaining height on a worn vane should not automatically be treated as its original dimension.
Required Measurements:
- • Length (L)
- • Height / Width (H/W)
- • Thickness (T)
- • Edge Chamfer / Radius
- • Bevel / Groove
- • Hole / Step
- • Directional features
Engineering Specifications for Replacement
A successful replacement requires evaluating geometry beyond basic dimensions.
Edge Geometry
Edge design influences orientation, running-in, contact, mechanical stress, and installation. Do not apply a generic chamfer or radius to a replacement vane when the original geometry is unknown.
Rotor-Slot Fit
The vane must move freely within the rotor slot. If too tight, binding, sticking, heat, and breakage may occur. If too loose, impact, tilting, instability, and leakage may occur.
Cylinder / Stator Surface
Inspect the pump running surface for scoring, grooves, pitting, deposits, or heat damage. A new replacement vane cannot compensate for a severely damaged cylinder, stator, or rotor.
New Vane Sample vs Worn Vane Sample
| Information | New / Unused Vane | Worn Vane |
|---|---|---|
| Original dimensions | Strong reference | Some dimensions altered |
| Original height | Available | May be unknown |
| Edge geometry | Strong reference | May be worn |
What a Worn Vane Cannot Always Reveal
A worn vacuum pump vane is useful for identification, but it is not always a complete engineering specification. It may not reveal original unworn height, exact material grade, original tolerances, or the pump-manufacturer wear limit.
How to Identify Existing Vane Material
Appearance may suggest a general material type but does not verify exact graphite grade, carbon composite type, fiber reinforcement, or thermal capability.
Color alone is not a reliable vacuum pump vane material identification method. Do not assume every black vane is graphite.
Potential Information Sources:
- • OEM service manual
- • Original part number
- • Vane marking / Material code
- • Existing technical drawing
- • Material certificate
- • Supplier documentation
Why Work With CARBOLVE for Replacement Vanes?
We focus on industrial carbon and graphite components, offering rigorous evaluation and precision manufacturing.
Multiple Identification Methods
Review projects using pump models, part numbers, drawings, samples, dimensions, or photos.
Material Verification
Evaluate whether a carbon/graphite material is appropriate before quoting, rather than guessing.
Precision Geometry Review
Evaluate thickness, height, length, edge features, and special geometry for rotor-slot fit.
Obsolete Vane Support
Evaluate hard-to-source or discontinued products using available technical fragments.
Inspection Before Shipment
Inspect against the agreed specification, including dimensional and surface checks.
Carbon & Graphite Focus
Dedicated manufacturer focusing on industrial carbon and graphite components.
How CARBOLVE Evaluates a Replacement Vane
Receive pump and vane information.
Confirm dry-running or oil-lubricated.
Confirm dimensions and existing material.
Establish proposed replacement specification.
Produce and validate where required.
Finished Vane Manufacturing & Precision Machining
Vane geometry influences rotor-slot movement, sealing, sliding, pump vacuum, noise, heat, wear, and breakage risk. Final tolerances should follow the approved replacement drawing or verified pump specification.
Manufacturing Stages:
- Material Specification Confirmation & Identification
- Precision Grinding / Machining (Length, Height, Thickness)
- Edge Machining (Chamfer, Radius, Bevel)
- Surface & Dimensional Inspection
Replacement Vacuum Pump Vane Troubleshooting
Poor vacuum performance can originate from leaks, filters, bearings, rotor wear, cylinder damage, valves, piping or process conditions as well as from vanes.
| Symptom | Possible Contributing Factors | Check |
|---|---|---|
| Reduced vacuum | Vane wear, leaks, filter, rotor/cylinder | Complete pump |
| Rapid wear | Material, dust, heat, surface damage | Vane + environment |
| Broken vane | Sticking, debris, impact, geometry | Rotor slots |
| Vane sticking | Dust, moisture, thickness, deposits | Slot |
| Heavy carbon dust | Wear, abrasion, surface damage | Vane + filtration |
When Should Vanes Be Replaced?
Vacuum pump vanes should be replaced according to the pump manufacturer’s approved wear limits, service documentation, or verified vane dimensions rather than one universal minimum height or operating-hour rule.
Should All Vanes Be Replaced Together?
Follow the pump manufacturer’s maintenance procedure and evaluate all vanes rather than judging only the most worn vane. Replacing a complete set may be appropriate depending on wear variation and rotor condition.
What Information Is Needed for a Quote?
Not every item is required for every inquiry. Send all information currently available and CARBOLVE can identify additional data required for technical review.
Vacuum Pump
- • Manufacturer & Model
- • Serial number
- • Dry / oil-lubricated
- • Nameplate photo
Existing Vane
- • OEM part number
- • Material / Grade
- • Drawing / Photos
- • Physical sample
Dimensions & Geometry
- • L × H/W × T
- • Edge geometry (Chamfer/Radius)
- • Vane quantity
- • Rotor-slot width/depth
Operating Data
- • RPM & Vacuum level
- • Process Gas & Dust
- • Moisture / Oil mist
- • Existing problem (Wear/Noise)
Frequently Asked Questions
Can I find replacement vanes by dimensions?
Can two vanes with identical dimensions be different?
Can vane material be identified by color?
Do oil-lubricated vacuum pumps use graphite vanes?
Can CARBOLVE reproduce a worn vacuum pump vane?
Does reduced vacuum always mean the vanes are worn?
What is the minimum vane height before replacement?
Find or Request Replacement Vacuum Pump Vanes
Complete pump, material, dimensional, rotor, operating, and environmental information helps CARBOLVE evaluate the replacement specification before manufacturing.
