Knuckle Boom
PK 21.501 SLD 3
Knuckle Boom Crane
Key Specs
Imperial
Metric
- Max Lifting Moment
- 20.9 mt 151,290 ft_lbs
- Max Lifting Capacity
- 6,200 kg 13,700 lb
- Max Hydraulic Outreach
- 14.9 m 48' 11''
The SLD range combines trusted technology with durable design to deliver robust, value-driven performance. The PK 21.501 SLD 3 is a practical, efficient crane designed for reliable daily operation. High Speed Extension accelerates telescoping for shorter load cycles, delivering swift turnarounds in repetitive materials handling.
Technical data U.S. Units
- Max. lifting moment
- 151,290 ft_lbs
- Max. lifting capacity
- 13,700 lb
- Max. hydraulic outreach
- 48' 11''
- Max. manual outreach
- 62' 4"
- Slewing angle
- 400°
- Slewing torque
- 16,960 ft_lbs
- Stabilizer spread (std)
- 16' 5''
- Width folded
- 8' 2''
- Max. operating pressure
- 4,785 psi
- Pump capacity
- 11.9 - 15.9 gpm
- Dead weight (std)
- 4,960 lbs
Cranes shown in the leaflet are partially optional equipped and do not always correspond to the standard version.
Country-specific regulations must be observed. Dimensions may vary. Subject to technical changes, errors and translation mistakes.
Technical Data Metric
- Max. lifting moment
- 20.9 mt
- Max. lifting capacity
- 6,200 kg
- Max. hydraulic outreach
- 14.9 m
- Max. manual outreach
- 19.1 m
- Slewing angle
- 400°
- Slewing torque
- 2.3 mt
- Stabilizer spread (std)
- 5.0 m
- Width folded
- 2.5 m
- Max. operating pressure
- 330 bar
- Pump capacity
- 45 - 60 l/min
- Dead weight (std)
- 2,260 kg
Cranes shown in the leaflet are partially optional equipped and do not always correspond to the standard version.
Country-specific regulations must be observed. Dimensions may vary. Subject to technical changes, errors and translation mistakes.
Lifting Capacities U.S. Units
|
Crane Weight (lbs) |
Lifting moment (ft_lbs) |
Pressure (psi) |
Crane Height (inch) |
Crane Width (inch) |
Installation Width (inch) |
Outreach |
Pump capacity (gpm) |
Slewing angle (°) |
Slewing torque (ft_lbs) |
|
|---|---|---|---|---|---|---|---|---|---|---|
| A | 4,960.4 lbs | 148,317.5 ft_lbs | 4,785 psi | 90.9 inch | 100.4 inch | 35.6 inch | 26'11" | 11.9-15.9 | 400 | 16960.0 |
| B | 5,313.1 lbs | 144,700 ft_lbs | 4,785 psi | 90.9 inch | 100.4 inch | 35.6 inch | 34'1" | 11.9-15.9 | 400 | 16960.0 |
| C | 5,599.7 lbs | 141,806 ft_lbs | 4,785 psi | 90.9 inch | 100.4 inch | 38.4 inch | 41'4" | 11.9-15.9 | 400 | 16960.0 |
| D | 5,820.2 lbs | 139,635.5 ft_lbs | 4,785 psi | 90.9 inch | 100.4 inch | 38.4 inch | 48'11" | 11.9-15.9 | 400 | 16960.0 |
Cranes shown in the leaflet are partially optional equipped and do not always correspond to the standard version.
Country-specific regulations must be observed. Dimensions may vary. Subject to technical changes, errors and translation mistakes.
Lifting Capacities Metric
|
Crane Height (mm) |
Crane Weight (kg) |
Crane Width (mm) |
Installation Width (mm) |
Lifting moment (mt) |
Outreach (m) |
Pressure (MPa) |
Pump capacity (l/min) |
Slewing angle (°) |
Slewing torque (mt) |
|
|---|---|---|---|---|---|---|---|---|---|---|
| A | 2,310 mm | 2,250 kg | 2,550 mm | 905 mm | 20.5 mt | 8.2 m | 33 Mpa | 45-60 | 400 | 2.3 |
| B | 2,310 mm | 2,410 kg | 2,550 mm | 905 mm | 20 mt | 10 m | 33 Mpa | 45-60 | 400 | 2.3 |
| C | 2,310 mm | 2,540 kg | 2,550 mm | 975 mm | 19.6 mt | 12.6 m | 33 Mpa | 65-90 | 400 | 2.3 |
| D | 2,310 mm | 2,640 kg | 2,550 mm | 975 mm | 19.3 mt | 14.9 m | 33 Mpa | 45-60 | 400 | 2.3 |
Cranes shown in the leaflet are partially optional equipped and do not always correspond to the standard version.
Country-specific regulations must be observed. Dimensions may vary. Subject to technical changes, errors and translation mistakes.
SINGLE LINK PLUS – Extended Reach
Single Link Plus reverse linkage system allowis the knuckle boom to tilt upward by up to 15° beyond the horizontal line. This expanded movement range simplifies work in tight spaces, through windows or doorways, and around obstacles. It also enables compact folding on the truck bed while improving precision, control, and efficiency during complex lifting tasks.
PALTRONIC – Smart Crane Control
PALTRONIC control electronics continuously monitor crane load, position, and stability in real time. Sensors send data to the system, which automatically activates safety, assistance, and performance functions when needed. This results in smoother movements, overload protection, improved stability, and easier operation—allowing the operator to focus fully on safe, precise load handling.
Optional Features
Radio Remote Control – Full Control
Radio remote control system operates the crane safely and efficiently from a distance. Operator commands are transmitted wirelessly delivering precise hydraulic movements. This enables clear visibility of the load, one-person operation, and allows work outside danger zones. Adjustable controls, speed settings, and built-in safety shutoffs improve comfort, accuracy, and overall job site safety.
HPSC – Smart Stability, More Reach
High Performance Stability Control (HPSC) continuously calculates crane stability based on the real position of the stabilizers. The system automatically adjusts the permitted working range for each setup situation, maximizing the lifting capacity even when space is limited. This improves safety, increases usable reach, and gives the operator clear, reliable guidance during crane operation.