Rotary motor 803000233 XCMG Truck crane

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Product Detail

Product Description: Swing Motor 803000233 (Type A2F28W2Z8) for XCMG QY40K Truck Crane

The Swing Motor 803000233 is a genuine OEM hydraulic component specifically engineered for the slewing (rotating) system of the XCMG QY40K Truck Crane, a 40‑ton class mobile crane widely used in construction, infrastructure projects, port logistics and oilfield operations. This motor is the designated XCMG factory original swing motor for the QY40K. It is also known by its hydraulic model number A2F28W2Z8, which corresponds to the motor‘s actual mechanical design—a bent‑axis axial piston fixed displacement motor.

General Specifications

Parameter	Value
OEM Part Number	803000233
Motor Model	A2F28W2Z8
Motor Type	Bent‑axis axial piston, fixed displacement
Nominal Displacement	28 cm³/rev (per A2F28 family)
Rated Pressure	32 MPa (approx. 4,640 psi)
Installation Style	Flange‑mount
Applicable Media	Hydraulic oil
Operating Temperature Range	30–90°C
Housing Material	Cast iron

Primary Application — XCMG QY40K Truck Crane

The 803000233 swing motor is factory‑specified for the XCMG QY40K truck crane. The QY40K is a 40‑ton class K‑Series crane built on a 6×4 chassis. The crane‘s slewing system—incorporating this swing motor, a planetary reduction gearbox and the slewing ring—delivers 360° continuous rotation with smooth control suitable for precision load positioning.

1. Primary Swing Motor Assembly

Part Number	Hydraulic Model / Description	Application / Notes
803000233	Swing Motor / Hydraulic Motor — A2F28W2Z8	XCMG QY40K Truck Crane; 40‑ton class; bent‑axis axial piston fixed displacement motor; 28 cm³/rev displacement; 32 MPa (approx. 4,640 psi) rated pressure; flange‑mount cast iron housing; OEM genuine XCMG spare part

2. Swing Motor Series — Available Displacements

The A2F28W2Z8 is part of a broader A2F series with a range of displacement options used across XCMG crane models:

Model Series	Displacement (cm³/rev)	Application Notes
A2F28W2Z8	28	Primary for QY40K swing motor
A2F28W2Z14	28 (alternate shaft)	Alternative output shaft configuration
A2F45W series	45	Larger QY/K‑Series cranes
A2F55W series	55	Larger QY/K‑Series cranes
A2F63W series	63	Larger QY/K‑Series cranes
A2F80W series	80	Larger QY/K‑Series cranes
A2F107W series	107	Larger QY/K‑Series cranes
A2F125W series	125	Largest QY/K‑Series cranes
A2F160W series	160	Largest QY/K‑Series cranes

3. XCMG K‑Series Truck Cranes (Compatibility Context)

Model	Tonnage Class	Swing Motor Type
QY40K	40‑ton	803000233 (A2F28W2Z8)
QY25K	25‑ton	Varies by production year
QY50K	50‑ton	Varies by production year
QY70K	70‑ton	Varies by production year
QY100K	100‑ton	Varies by production year
QY130K	130‑ton	Varies by production year
QUY50	50‑ton crawler	Varies

4. XCMG Truck Cranes Product Code Reference

Product Code	Model	Tonnage	Swing Motor
XZJ5333JQZ40K	QY40K	40‑ton	803000233 (A2F28W2Z8)
XZJ5327JQZ25K	QY25K	25‑ton	Varies by production year
XZJ5414JQZ50K	QY50K	50‑ton	Varies by production year
XZJ5491JQZ70K	QY70K	70‑ton	Varies by production year

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