CASAPPA Cast Iron External Gear Pump KP40.73S0-34S8-LME/MD-N-CSC

Overview of CASAPPA Cast Iron External Gear Pump KP40.73

CASAPPA Cast Iron External Gear Pump KP40.73 (ordering code KP40.73S0-34S8-LME/MD-N-CSC) is a heavy-duty, Group 4 external gear pump engineered with a rugged cast iron body and precision-machined gears to deliver high volumetric efficiency, smooth fluid delivery, and dependable continuous operation under demanding working pressure. This fixed-displacement pump is built to European standards and designed for mobile and industrial hydraulic circuits that require high flow rates, robust performance, and long service life. Its pressure-balanced construction and optimized porting convert mechanical power into hydraulic flow efficiently while withstanding the thermal and mechanical stress of harsh operating environments.

Dimension of CASAPPA Cast Iron External Gear Pump KP40.73

Note: Dimensional engineering drawings detailing port locations, shaft lengths, and flange bolt circles are available upon request for precise layout integration.

Pump Installation Specifications

• Mounting Interface: Standard SAE and European 4-bolt mounting flanges designed for secure, precise alignment on pump drives and power take-offs.

• Drive Connection: Keyed parallel shaft and tapered shaft configurations engineered to accept flexible couplings with minimal radial load.

• Port Orientation: Side-ported configuration with threaded or SAE split-flange connections to prevent leakage under peak pressure.

• Alignment Tolerance: Maximum coaxial misalignment between the pump shaft and drive shaft kept within 0.05 mm to prevent premature bearing and seal wear.

Techspecs of CASAPPA Cast Iron External Gear Pump KP40.73

Advantages of CASAPPA Cast Iron External Gear Pump KP40.73

• Exceptional durability: provided by an all cast iron housing that suppresses vibration and lowers noise emission under heavy load.

• High volumetric efficiency: achieved through pressure-balanced side plates and automatic axial clearance compensation.

• High flow capacity: with a 73 cm³/rev Group 4 displacement for demanding medium-to-high flow circuits.

• Flexible rotation options: supporting clockwise, counter-clockwise, and reversible requirements to match any circuit layout.

• Proven contamination resistance: and thermal stability thanks to hardened gears and specialized internal surface treatment.

Reference of CASAPPA Cast Iron External Gear Pump KP40.73

• KP40.73S0-34S8-LME/MD-N-CSC — counter-clockwise, 73 cm³/rev

• KP40.73D0 — clockwise rotation, 73 cm³/rev

• KP40.73S0 — counter-clockwise rotation, 73 cm³/rev

• KP40.73R0 — reversible rotation, 73 cm³/rev

• KP40.63 — 63 cm³/rev, Group 4

• KP40.87 — 87 cm³/rev, Group 4

Brand Replacement

CASAPPA Cast Iron External Gear Pump KP40.73 is engineered as a direct drop-in replacement for the genuine CASAPPA KP40.73 cast iron external gear pump and its Group 4 equivalents, matching the original mounting footprint, port locations, shaft configuration, and performance curves exactly. It installs without any system modification and is fully interchangeable with KP40.73D0 (clockwise), KP40.73S0 (counter-clockwise), and KP40.73R0 (reversible) variants used across construction, agricultural, and industrial hydraulic systems.

Applications of CASAPPA Cast Iron External Gear Pump KP40.73

CASAPPA Cast Iron External Gear Pump KP40.73 is widely deployed across mobile and industrial hydraulic systems, including construction and earth-moving machinery, backhoe loaders, agricultural tractors and implements, truck power take-off systems, hydraulic power units, and industrial presses. Its Group 4 displacement makes it ideal for applications requiring high flow rates and sustained operating pressure in heavy-duty duty cycles.

Package & Shipping

Each pump is individually sealed in anti-corrosion VCI packaging, cushioned with custom-molded foam, and packed into reinforced export-grade plywood crates to prevent transit damage. We offer global air freight, ocean shipping, and express courier options with full shipment tracking and flexible delivery terms.

Why Choose Hengyuhang?

Hengyuhang Hydraulics combines decades of manufacturing expertise with rigorous quality control, ensuring every pump undergoes 100% factory pressure and performance testing before dispatch. We provide flexible OEM/ODM volume customization, responsive engineering support, and reliable supply chain solutions tailored to your market demands.