Ten two-stage log splitter pumps. Each combines a high-flow low-pressure section for fast ram advance with a low-flow high-pressure section for the splitting stroke, at 3600 r/min with NPT discharge ports.
Log Splitter Pumps manufacturing starts with confirmed technical requirements.
Review machine application, displacement, working pressure, port threads, and rotation direction before requesting a quotation.
Two-stage operation is the defining feature. Take CBNA-6.3/2.1: the first section delivers 6.3 ml/r at 2.5 Mpa to advance the ram under no load, and the second delivers 2.1 ml/r at 20 Mpa once the ram meets resistance. An unloading valve shifts between them automatically. This gives fast cycle times without needing a motor large enough to drive full flow at full pressure. The pressure notation follows the same split: 2.5/20 Mpa means 2.5 Mpa on the first section and 20 Mpa on the second. CBDN-22/4JL is rated 5/28 Mpa, and CBNA-15/3.0 is listed at 2.5/21 Mpa. Ports are consistent across the group: a 25.4 mm (1 inch) feed with NPT 1/2 discharge on the CBNA and 2CB series, Φ30 feed with NPT 3/4 discharge on CBDN-22/4JL, and 2-G 3/8 with 2-NPT 1/2 on GHP-F3.5/F3.5R. The GHP-F3.5/F3.5R entry is the outlier: equal 3.5/3.5 ml/r sections with a single 250 bar rating, which suggests a different internal arrangement rather than a true two-stage pump.
Rated PressureUp to 25 MPa (250 bar)
Max SpeedUp to 3,600 r/min
Quality Control100% Flow & Pressure Test
Log Splitter PumpsFactory Genuine Spec
Selection guidance
How to specify a log splitter pumps for quotation.
Use equipment model, OEM reference numbers, rotation direction, and port threads to verify exact replacement compatibility.
1. Confirm the OEM reference number first. LOG SPLITTER tractors of the same model year can carry different pump part numbers depending on whether the machine has factory hydraulic remotes, a loader valve, or power steering priority. 2. Match displacement, not just the mounting flange. Nominal displacement in ml/r sets flow at a given engine speed. A larger displacement raises flow but also raises drive torque and heat load. 3. Confirm rotation direction. Catalogue entries are listed as Right (Clockwise) or Left (Anti-clockwise) as viewed from the drive end. A pump run backwards will not prime. 4. Check both port threads before ordering. The catalogue mixes UNF, metric fine (M18x1.5, M16x1.5, M14x1.5), BSP (G), and NPT threads within the same brand family. Adapters add leak points and cost. 5. Match pressure capability to the relief setting. Maximum pressure in the catalogue is the pump rating, not the system setting. The relief valve normally limits working pressure below that figure. 6. Check the controlled flow rate where listed. Some entries include a controlled flow rate in L/min, which matters for steering and constant-flow circuits.
Technical specifications
Core technical parameters for engineering and procurement review.
Product type
Hydraulic gear pump
Entries in catalogue
10
Displacement range
13/1.8 ml/r to 8.8/3.6 ml/r
Maximum pressure range
2.5/20 Mpa to 5/28 Mpa
Speed range
3600 r/min (highest)
Controlled flow rate
Not published
Port configurations
2-G 3/8 / 2-NPT 1/2 to Φ30 / NPT 3/4
Rotation directions available
Right (Clockwise)
Material
Not published in catalogue
Standard
No product standard stated in catalogue
Custom options
Sample-based and drawing-based development accepted
Catalogue Interchange Reference
Available Models & OEM Reference Specifications
Cross-check OEM part numbers, displacement, max pressure, port threads, and rotation direction before ordering.
#
Applied To
Catalogue Page
OEM Ref. No.
Manufactory Ref.
Displacement
Max Pressure
Speed
Controlled Flow
Feed Port
Discharge Port
Rotation
1
LOG SPLITTERS
12
GHP-F3.5/F3.5R
Not published
3.5/3.5 ml/r
250 bar
3600 r/min (highest)
Not published
2-G 3/8
2-NPT 1/2
Right (Clockwise)
2
LOG SPLITTERS
12
CBDN-22/4JL
Not published
22/4 ml/r
5/28 Mpa
3600 r/min (highest)
Not published
Φ30
NPT 3/4
Right (Clockwise)
3
LOG SPLITTERS
13
CBNA-6.3/2.1
Not published
6.3/2.1 ml/r
2.5/20 Mpa
3600 r/min (highest)
Not published
Φ25.4
NPT 1/2
Right (Clockwise)
4
LOG SPLITTERS
13
2CB-E8.8/2.1
Not published
8.8/2.1 ml/r
2.5/20 Mpa
3600 r/min (highest)
Not published
Φ25.4
NPT 1/2
Right (Clockwise)
5
LOG SPLITTERS
13
CBNA-13/3.0
Not published
13/3.0 ml/r
2.5/20 Mpa
3600 r/min (highest)
Not published
Φ25.4
NPT 1/2
Right (Clockwise)
6
LOG SPLITTERS
13
CBNA-15/3.0
Not published
15/3.0 ml/r
2.5/21 Mpa
3600 r/min (highest)
Not published
Φ25.4
NPT 1/2
Right (Clockwise)
7
LOG SPLITTERS
13
CBNA-8.8/3.6
Not published
8.8/3.6 ml/r
2.5/20 Mpa
3600 r/min (highest)
Not published
Φ25.4
NPT 1/2
Right (Clockwise)
8
LOG SPLITTERS
13
2CB-E13/1.8
Not published
13/1.8 ml/r
2.5/20 Mpa
3600 r/min (highest)
Not published
Φ25.4
NPT 1/2
Right (Clockwise)
9
LOG SPLITTERS
13
2CB-4.2/1.0
Not published
4.2/1.0 ml/r
2.5/20 Mpa
3600 r/min (highest)
Not published
Φ25.4
NPT 1/2
Right (Clockwise)
10
LOG SPLITTERS
13
2CB-E8.8/1.8
Not published
15/3.0 ml/r (OCR conflict)
2.5/20 Mpa
3600 r/min (highest)
Not published
Φ25.4
NPT 1/2
Right (Clockwise)
* Note: Cross-check OEM reference number, rotation direction, and port threads against the existing pump on your machine. All models can also be custom manufactured from samples or drawings.
Two-stage hydraulic log splitter pump fast advance and splitting stroke performance
Custom options
Manufacturing details that can be reviewed before quotation.
Clockwise (CW) or Anti-Clockwise (CCW) rotation configurations
Multiple port thread standards: UNF, metric fine, BSP (G), and NPT
Splined, cylindrical keyed, or tapered drive shaft options
Integrated priority flow control valves for steering circuits
Custom development from buyer 2D/3D CAD drawings or physical samples
Quality control
Inspection points tied to the approved technical file.
100% computerized end-of-line bench testing for flow, pressure, and leakage
Micro-inch CMM dimensional verification of mounting pilot and shaft journals
Volumetric efficiency validated under full rated operating pressure
Batch traceability and inspection certificate supplied with every order
All products can be custom manufactured from 2D/3D CAD drawings or physical samples.
Quality Control & Inspection Matrix
Engineering Evidence & 100% Inspection for Log Splitter Pumps.
Overseas procurement teams require verifiable technical data, not unsupported claims. Every production batch at ZhongYi is inspected against approved CAD blueprints and international standards (DIN, AGMA, ISO).
Component-Specific Quality Focus:
The supplier holds an IATF 16949:2016 certificate (certificate number DB00992, IATF registration number 0454540, issued 26/07/2022, expiring 25/07/2025). IATF 16949 covers automotive-sector quality management system requirements; it is not a product type approval and does not by itself certify any individual pump model. The catalogue does not publish material grades, heat treatment specifications, volumetric efficiency test data, or endurance test results. Buyers who need those should request them directly rather than assume they exist: dimensional inspection reports for the mounting flange, shaft, and port threads; material certificates for the housing and gear set; volumetric and overall efficiency test curves at rated speed and pressure; sample pumps for fitment and bench testing before a production order; and confirmation of the drawing revision used for manufacture. Because the certificate expiry date has passed relative to many buying cycles, ask for the current certificate before qualifying the supplier.
Coordinate Metrology
Zeiss / Hexagon 3D CMM
Validates 3D spatial GD&T, bore concentricity, center distance, and geometric tolerances down to ±0.002 mm.
Tooth Geometry Analysis
Klingelnberg CNC Gear Analyzer
Inspects involute tooth profile error (fα), lead crowning (fβ), pitch cumulative error (Fp), and radial runout (Fr).
Hardness & Case Depth
Digital Micro-Vickers & Rockwell Testers
Verifies surface hardness (58–62 HRC), core toughness, and effective carburized / nitrided case depth gradient.
Chemical Metallurgy
Direct-Reading Optical Spectrometer
100% chemical composition verification of alloy steel forgings (20CrMnTi, 42CrMo, 18CrNiMo7-6, Stainless, POM).
Inspection Deliverables with Every Shipment
Complete Batch Traceability & Certified Test Reports
EN 10204 Type 3.1 Mill Test Certificate (Chemical & Mechanical Properties)
Zeiss 3D CMM Full Dimensional Inspection Sheet
Klingelnberg Tooth Profile & Lead Crowning Graph Report
Effective Carburized Case Depth & Hardness Curve Data
We maintain strict incoming material spectroscopy, in-process CNC tooth coordinate monitoring, and 100% final pre-shipment dimensional inspection. All custom gear batches are backed by our full manufacturing warranty.
ISO 9001:2015 Certified
DIN 4-7 / AGMA 11-13 Standards
Applications
Log Splitter Pumps operating environments.
Confirm load, speed, duty cycle, environment, lubrication, and assembly constraints before selecting the final material and manufacturing route.
Hydraulic log splitters for firewood processing
Two-stage hydraulic circuits needing fast advance and high force
Small hydraulic presses and similar fast-approach tooling
OEM supply to log splitter assemblers
Replacement supply for outdoor power equipment distributors
Application Markets
Where Log Splitter Pumps Are Engineered & Deployed
Discover how this gear category meets extreme torque, low backlash, quiet operation, and weather-resistance demands in primary industry sectors:
High-torque, impact-resistant gears, girth rings, and planetary drive sets engineered for excavators, cranes, drilling rigs, and heavy mining crushers.
Common questions before ordering log splitter pumps products.
Critical specifications are confirmed against final drawings before production.
What does the two-figure displacement mean?▼
It gives the displacement of each section: 6.3/2.1 ml/r means one section moves 6.3 ml per revolution and the other 2.1 ml. The larger section provides fast ram travel at low pressure; the smaller provides splitting force at high pressure.
24-Hour Engineering Quote & DFM Review
Upload Your Drawings for Log Splitter Pumps Manufacturing
Send your 2D blueprints or 3D CAD models. Our senior gear engineering team will review tooth geometry, module/pitch, materials, heat treatment feasibility, and provide transparent factory pricing within 24 hours.
Supported CAD Blueprint & Drawing Formats:
STEP (.step / .stp) AutoCAD (.dwg / .dxf) IGES (.igs) SolidWorks / 3D CAD PDF Technical Blueprints Worn Physical Samples
Mutual NDA Protection
We sign strict Non-Disclosure Agreements to safeguard proprietary designs.
< 24h DFM Feedback
Rapid manufacturability review, tolerance checks, and unit quotation.
Direct Factory Engineering
Direct technical communication with senior master gear artisans.
