PT7528-18t Tower Crane

1. Flat-top tower crane lifting arm and counterbalance arm can be installed quickly and conveniently in segments, and can change arm in the air;
2. The standard section of tower body adopts L69-type piece-assembled structural design and is equipped with inclined inclined ladder;
3. The lifting arm can realize a variety of arm length combinations according to user requirements;
4. Lifting, slewing and luffing are all controlled by frequency conversion, and the lifting mechanism has zero servo fall prevention function and the slewing mechanism has anti-swing function.

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Product Highlights

Standard section The standard section is a plate-type assembly structure connected by a fish tail plate and a pin shaft, which can be suitable for long-distance transportation; the ladder is an inclined escalator, which is safe and convenient to climb up and down the tower crane.
	Group tower operation Design with a pulley cart to reduce the sagging of the lifting steel wire rope and increase the passageability of the tower crane.
Lifting arm Lifting arm section installation, aerial arm connection, and various types of installation brackets are designed, making installation quick and convenient.
	Lifting mechanism Lifting mechanism frequency conversion control, using large diameter double involute groove drum to lay the rope well, closed-loop control, stepless speed regulation, smooth start and braking, and has zero servo function.
Luffing mechanism The luffing mechanism of the small car adopts a variable frequency motor and uses variable frequency control, which is compact in structure and accurate in positioning.

Technical Parameters

Name		Unit	Parameter
Rated Lifting Moment		kN.m	2750
Maximum lifting torque		kN.m	3250
Maximum lifting capacity		t	18
Work range		m	3.5～75/70/65/60
Lifting capacity at maximum working reach		t	2.8
Lifting height		m	Multiple		Independent		Attaching
			2		60		200
			4		60		100
Lifting performance	Multiple		2			4
	Lifting speed	m/min	90	45		45		22.5
	Lifting capacity	t	4.5	9		9		18
Rotating speed		revolutions per minute	0～0.85
Lifting speed		m/min	0～75
Lifting speed		m/min	0.48
Tower section size		m	2.0×2.0
Counterweight		t	27
Working temperature		℃	-20～+40
Total machine power		kW	108 (excluding lifting motor)

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