PLP30.43D0-83E3-LED/EB-N Casappa Gear Pump 43.98 cm³

Product Overview:

The PLP30.43D0-83E3-LED/EB-N-FS (material number 03590333) and PLP30.51D0-83E3-LED/EB-N-EL belong to the Casappa Polaris (PLP) series of aluminum-body external gear pumps. Fixed-displacement design featuring a high-strength aluminum housing (cast-iron covers optional), engineered for medium- to high-pressure mobile and industrial hydraulic systems. Lightweight construction, low noise and high volumetric efficiency. Fully interchangeable with original Casappa mounting dimensions, shaft ends, flanges and ports – true drop-in replacement. Every unit undergoes 100% simulated operating-condition testing to guarantee reliable output under rated pressure and speed. Ideal for OEMs and aftermarket applications demanding interchangeability, weight reduction and consistency.

Technical Specifications

• Models: PLP30.43D0-83E3-LED/EB-N-FS and PLP30.51D0-83E3-LED/EB-N-EL (PLP10 / PLP20 / PLP30 series)
• Material number: 03590333 (PLP30.43)
• Brand: Casappa
• Type: High-performance external gear pump (fixed displacement)
• Displacement: PLP30.43 = 43.98 cm³/rev; PLP30.51 = 51.83 cm³/rev
• Continuous pressure: PLP30.43 = 230 bar; PLP30.51 = 210 bar
• Intermittent pressure: PLP30.43 = 250 bar; PLP30.51 = 230 bar
• Peak pressure: PLP30.43 = 260 bar; PLP30.51 = 240 bar
• Maximum speed: PLP30.43 = 3000 rpm; PLP30.51 = 2500 rpm
• Minimum speed: 350 rpm
• Suction pressure: 0.7–3 bar absolute
• Control: Fixed displacement
• Direction of rotation: Clockwise (D, viewed on drive shaft)
• Drive shaft: European tapered 1:8 (code 83)
• Mounting flange: European E3 4-hole standard (centering diameter 50.8 mm)
• Port connections: European flanged (LED/EB side ports)
• Housing material: High-strength aluminum (cast-iron covers optional)
• Weight: approx. 9–9.5 kg (depending on configuration)

Key Technical Advantages:

1. High-strength aluminum housing: Lightweight with good heat dissipation while maintaining structural rigidity – ideal for mobile equipment requiring reduced weight.
2. Precision gear machining and pressure-compensated gap sealing: Low internal leakage and reduced heat generation maintain high volumetric efficiency under medium- to high-pressure conditions.
3. Full interchangeability: Mounting dimensions, shaft ends, flanges and ports match original Casappa exactly – true drop-in replacement without system modifications.
4. Low noise and long service life: Optimized tooth profile and reduced pressure pulsation deliver quieter operation; plain bearings and high-quality seals extend operational life.
5. 100% simulated-condition testing: Every unit is tested under actual working pressure, speed and load before shipment, ensuring consistent performance and reliability.

Application Areas:

Construction machinery (auxiliary circuits on excavators and loaders), agricultural equipment, forklifts, port machinery, industrial hydraulic power units, mobile cranes and any medium- to high-pressure fixed-displacement hydraulic systems. Particularly suited for space-constrained, weight-sensitive applications with strict interchangeability requirements in both OEM and aftermarket use.

Expert Maintenance Tips:

Install strictly according to original rotation direction and flange alignment to avoid additional radial or axial loads. Bleed the system thoroughly and verify suction-line sealing before first operation to prevent cavitation. Use mineral-based hydraulic oil meeting ISO/DIN standards (recommended operating viscosity 12–100 mm²/s) and maintain cleanliness class ISO 4406 19/17/14 or better. Monitor shaft-seal and housing temperatures regularly and stay within the allowed ambient temperature range. For long-term storage, seal all ports and fill with preservative oil. When replacing, always select the identical model or a fully tested interchangeable unit to maintain system matching and service life.