234-1649 Planetary Gearbox For CAT Compactor
Wuhan Xinlaifu Hydraulic Equipment Co., Ltd. is one of the leading manufacturers and suppliers of 234-1649 planetary gearbox for cat compactor in China. With abundant experience, we warmly welcome you to buy high quality customized products at competitive price from our factory. Also, OEM&ODM service is available.
Specifications
| Type | 234-1649 / 2341649 / 262-3690 CB-534C CB-534D CB-54 CB-564D CB-634C CB-634D CB-64 |
| Brand | XLF Hydraulic |
| Max Output Torque Range | 95000 N.m |
| Rated Working Pressure | 350 bar (35 MPa) |
| Peak Pressure | Max 420 bar (42 MPa) |
| Mount Flange | 1:1 interchangeable CAT OEM flange |
| Port Size | G1/2 hydraulic port |
| Built-in Parts | 2-stage planetary gear, travel motor, parking brake, floating oil seal |
| Recommended Oil | ISO VG46 hydraulic oil, SAE 80W-90 gear oil |
Product Overview
Revised Concise Version For 234-1649 / 2341649 / 262-3690 Compactor Drum Gearbox
234-1649, 2341649 and 262-3690 are 2-stage integrated planetary final drives, direct OEM replacements for CAT CB tandem compactors: CB-534C, CB-534D, CB-54, CB-564D, CB-634C, CB-634D, CB-64. Equipped with 1:1 CAT OEM flanges, G1/2 hydraulic ports and FKM high-pressure seals, each unit integrates a piston travel motor and parking brake. Hardened alloy gears and thick cast housing deliver stable high torque for paving and hill climbing. All dimensions, ports and splines match original units for plug-and-play fitting without extra machining.
This one-piece drum drive runs at 350 bar rated pressure and 420 bar peak pressure, holding steady performance under long full-load asphalt compaction. Its shock-resistant alloy structure adapts to dusty, muddy road construction sites.
Upgrades include heavy-duty seal kits and reinforced splines, fully compatible with CAT original hydraulics. No extra adapters needed for fast drum mounting. It is a compact, cost-effective high-torque drive solution widely used in all asphalt paving projects.
Core Advantages
1. Optimized Integrated Planetary Reducer Modular Design – For CAT CB Series Tandem Compactor Drum Drive System
Part No. 234-1649, 2341649 and 262-3690 are integrated 2-stage planetary drum travel gearboxes, direct OEM interchange parts for CAT tandem asphalt compactors CB-534C, CB-534D, CB-54, CB-564D, CB-634C, CB-634D and CB-64. Adopting carburized hardened alloy planetary gears and heavy-duty reinforced bearings, this all-in-one drive assembly delivers stable high torque, reliably sustaining continuous compaction vibration and slope climbing loads for long-hour paving operations.
It perfectly matches the original CAT hydraulic drive system with standard G1/2 hydraulic ports, requiring no transition adapters. Ideal for asphalt paving, highway and municipal road compaction. The thickened cast iron housing features a compact structural layout to fit limited drum installation space. With 1:1 OEM identical mounting flange, bolt holes and output splines, it supports direct plug-and-play replacement and greatly reduces equipment maintenance downtime.
2. 234-1649 Series Drum Gearbox – High Torque 2-Stage Planetary Drive For CAT CB Series Rollers
The 234-1649 planetary final drive is a heavy-duty high-torque drive unit tailored for CAT tandem vibratory compactors. It works at a rated working pressure of 350 bar and supports a peak pressure of 420 bar, providing sufficient torque for heavy-duty compaction and steep slope climbing.
Reinforced gear sets and FKM high-pressure resistant seals ensure stable transmission efficiency under frequent pressure fluctuations and strong vibration. Precision machined gears reduce internal wear for extended service life, while premium sealing systems effectively prevent oil leakage and block dust, mud ingress on harsh construction sites.
Designed for wide working temperatures from -20℃ to +85℃, this gearbox adapts to various harsh, dusty and muddy job environments. Integrated with an axial piston travel motor and multi-disc parking brake, it balances fast travelling speed and low-speed heavy compaction performance, perfectly suited for all road infrastructure paving and compaction projects.
Q: What machine does the 234-1649 / 2341649 / 262-3690 drum gearbox fit?
A: These interchangeable part numbers represent a complete planetary final drive gearbox, compatible with CAT tandem asphalt compactors: CB-534C, CB-534D, CB-54, CB-564D, CB-634C, CB-634D and CB-64. It acts as the core travel drive for the roller's front and rear steel drums.
Q: Is it a direct OEM replacement?
A: Yes. All flanges, bolt holes, splines, hydraulic ports and dimensions are 1:1 OEM compatible. No modification is required for direct plug-and-play replacement.
Q: What are the core technical parameters?
A: Rated pressure: 350 bar; peak pressure: 420 bar; max output torque: 95000 N·m. Featuring a 2-stage heavy-duty planetary structure with integrated piston motor and parking brake, it delivers reliable power for heavy compaction and slope climbing.
Q: Is it fully compatible with the original hydraulic system?
A: Fully compatible with the original hydraulic system of CAT CB series compactors. No adapters are needed, ensuring stable and consistent operating performance.
Q: Does this gearbox support speed adjustment and stable travel performance?
A: Yes. The integrated piston motor offers stepless speed regulation, switching between low-speed high-torque compaction and high-speed travel to fit various construction scenarios.
Q: Are customized upgrade options available?
A: Yes. Custom upgrades are available, including reinforced hardened gear sets, heavy-duty seal kits, strengthened bearings and wear-resistant splines for harsh working conditions.
Q: What lubricants and maintenance cycles are recommended?
A: Use ISO VG46 hydraulic oil and SAE 80W-90 gear oil. Inspect oil level and seals every 300 working hours; replace gear oil completely every 1000 hours to maintain stable performance.
Q: How to solve common leakage and overheating problems?
A: Minor leakage can be fixed by retightening bolts; severe leakage requires a full seal kit replacement. Overheating is mainly caused by deteriorated oil, insufficient lubrication or internal wear. Regular maintenance is required, and non-professional disassembly is forbidden.
Q: What is your warranty policy?
A: We provide a 12-month factory warranty. Free technical support and part replacement are offered for non-human damage under standard installation and operation.
Document Info
Part Numbers: 234-1649, 2341649, Assembly GP No. 262-3690
Compatible Equipment: CAT CB-534C, CB-534D, CB-54, CB-564D, CB-634C, CB-634D, CB-64 Double Drum Vibratory Compactor
Matching Engine: CAT 3054C, C4.4, 3116, 3126
Product Type: 2-Stage Integrated Planetary Drum Travel Final Drive (Built-in Axial Piston Motor + Multi-disc Parking Brake)
Brand (Aftermarket): XLF Hydraulic / OEM Original: Caterpillar
1. Core Mechanical Transmission Specifications
| Item | Technical Value |
|---|---|
| Gear Structure | 2-stage NGW heavy-duty planetary reduction |
| Total Reduction Ratio | 78.6 : 1 |
| Rated Continuous Output Torque | 62000 N·m |
| Max Intermittent Peak Torque | 95000 N·m |
| Allowable Max Input Speed | 1850 rpm |
| Max Drum Output Rotation Speed | 23.5 rpm |
| Gear Material | 20CrMnTi carburized alloy steel, HRC 58–62 hard tooth surface |
| Housing Material | Thickened HT250 high-strength cast iron |
| Output Spline | 42 teeth, module 4, internal involute spline |
| Input Spline | 24 teeth, module 3 |
| Allowable Radial Load | 110 kN |
| Allowable Axial Load | 48 kN |
| Backlash | ≤12 arcmin |
| Transmission Efficiency (Full Load) | ≥92% |
| Net Weight | 146 kg |
2. Hydraulic Matching Parameters
| Item | Technical Value |
|---|---|
| Integrated Motor Type | Fixed displacement axial piston travel motor |
| Motor Displacement | 75 cc/rev |
| Rated Working Pressure | 350 bar (35 MPa) |
| Instant Peak Pressure | Max 420 bar (42 MPa) |
| Applicable Hydraulic Flow Range | 40–110 L/min |
| Standard Hydraulic Port Size | G1/2 |
| Main Seal Material | FKM fluororubber high-pressure oil seal; double floating output mud seal |
| Gearbox Lubricant Volume | 7.2 L |
| Recommended Hydraulic Oil | ISO VG46 anti-wear hydraulic oil |
| Recommended Gear Lubricant | SAE 80W-90 heavy-duty gear oil |
3. Overall Mounting Dimension (Unit: mm)
| Dimension Item | Size |
|---|---|
| Max Outer Diameter of Housing | Φ485 |
| Total Length (Flange to Motor End) | 562 |
| Output Flange Bolt Circle Diameter | Φ410 |
| Mounting Bolt Spec & Qty | 16 pcs M24 high-strength bolts |
4. Working Environment & Service Index
| Item | Standard Parameter |
|---|---|
| Continuous Operating Temperature Range | -20℃ ~ +85℃ |
| Short-time High Temperature Limit | ≤105℃ (Max 30 mins continuous) |
| Protection Grade | IP67 dustproof & waterproof |
| Duty Cycle | S1 full continuous heavy-load operation |
| Design Service Life | 20000 working hours (under standard maintenance) |
| Applicable Altitude | ≤3000 m |
| Anti-leakage Structure | Dual floating oil seal + axial composite sealing, mud & asphalt slurry isolation design |
5. Structural Composition Description
Two-stage planetary reduction group: Primary sun gear + planet carrier, secondary reinforced planetary group for high torque output during slope climbing and heavy compaction.
All-in-one integrated axial piston hydraulic motor at input end, compact layout to fit narrow drum internal space.
Built-in multi-disc static parking brake, reliable locking for slope parking during paving work.
Double floating oil seal at output flange, effectively isolate muddy water, asphalt residue and cooling water from steel drums.
Reinforced cast iron housing, anti-impact structure to resist frequent vibration and impact from road compaction.
6. OEM Replacement Compatibility
1:1 interchangeable with original CAT 234-1649 factory unit, identical mounting flange, splines, port positions and overall dimensions, no cutting, drilling or pipe modification required for plug-and-play installation.
Fully compatible with original hydraulic circuits of CAT CB series tandem compactors, no transition adapters needed.
Interchangeable assembly group number: 262-3690 (DRIVE GP-DRUM, factory original assembly number for CB534D / CB564D / CB634D).
7. Maintenance Specification
Inspection cycle: Check oil level, seal leakage and spline wear every 300 working hours.
Gear oil full replacement cycle: Every 1000 working hours.
Replace floating oil seal and full seal kit when obvious oil leakage occurs.
Prohibit unauthorized disassembly without professional hydraulic repair tools.
8. Warranty & Supply Info
Factory Warranty: 12 months from delivery date
MOQ: 1 piece
FOB Reference Unit Price: USD 2500 / pc
Annual Production Capacity: 500–800 sets
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