UR20 vs JAKA Zu 20: 20 kg Palletizing Cobot Comparison

The Universal Robots UR20 and the JAKA Zu 20 are 20 kg, IP65 cobots built for palletizing. The Zu 20 reaches slightly further, repeats more tightly and costs about 45% less. The UR20 is lighter, fast and has a built-in force/torque sensor.

Quick verdict. The JAKA Zu 20 is the value choice for palletizing, with 1780 mm reach, ±0.05 mm repeatability and a listed price about 45% lower. The UR20 is the better choice for high-throughput lines, with a 5 m/s tool speed, a 64 kg arm and UR+ palletizing kits.

UR20 and JAKA Zu 20 at a glance

The UR20 carries 20 kg over 1750 mm, repeats to ±0.1 mm, weighs 64 kg and is rated IP65.

The JAKA Zu 20 carries 20 kg over 1780 mm, repeats to ±0.05 mm, weighs 68 kg and is rated IP65.

Main specification comparison

Specification	Universal Robots UR20	JAKA Zu 20
Brand	Universal Robots	JAKA
Listed price	$72,100	$40,000
Payload	20 kg	20 kg
Reach	1750 mm	1780 mm
Repeatability	±0.1 mm	±0.05 mm
Axes	6	6
Speed	5 m/s maximum TCP speed	Not specified
Arm weight	64 kg	68 kg
IP rating	IP65	IP65
Controller	UR control box CB 5.5 / CB 5.6	JAKA StandardCab control cabinet

Price comparison

Universal Robots UR20

• UR20: listed from $72,100

• JAKA Zu 20: listed from $40,000

• Difference: $32,100

• The JAKA Zu 20 costs roughly 45% less

For multi-line palletizing projects, a saving of this size per robot changes the payback calculation.

Reach and precision

Both arms carry 20 kg and are rated IP65. The Zu 20 reaches 1780 mm, 30 mm more, and publishes ±0.05 mm repeatability against ±0.1 mm for the UR20.

Speed and throughput

JAKA Zu 20

Universal Robots publishes a 5 m/s maximum tool speed for the UR20. JAKA does not publish a maximum speed for the Zu 20 in the reviewed specification. Where cycle time drives the business case, the UR20's published speed is an advantage.

Weight and sensing

The UR20 weighs 64 kg, 4 kg less than the Zu 20. It has a built-in ±200 N / ±20 Nm force/torque sensor and supports PROFINET with PROFIsafe, EtherNet/IP, Modbus TCP and ROS/ROS2. The Zu 20 can be mounted at any angle and runs on the JAKA StandardCab control cabinet.

Best applications for the UR20

UR20 collaborative robot arm

• High-throughput palletizing

• Force-controlled heavy screwdriving

• Lines using UR+ palletizing kits

Best applications for the JAKA Zu 20

• Budget-conscious palletizing

• Heavy material handling

• Dusty or wet production areas

UR20 advantages

JAKA Zu 20 robot arm

• 5 m/s speed

• Built-in force/torque sensor

• UR+ ecosystem

UR20 limitations

• About $32,100 higher listed price

• ±0.1 mm repeatability

JAKA Zu 20 advantages

• About 45% lower listed price

• 1780 mm reach

• ±0.05 mm repeatability

JAKA Zu 20 limitations

• 68 kg arm

Final verdict

Choose the JAKA Zu 20 for palletizing and heavy handling at a lower price. Choose the UR20 for throughput, force control and the UR+ ecosystem.

Sources and further reading

• Universal Robots UR20 Review

• JAKA Zu 20 Review

• Universal Robots UR20 product listing

• JAKA Zu 20 product listing

Frequently asked questions

Which is cheaper, the UR20 or the JAKA Zu 20?

The JAKA Zu 20 is listed from $40,000 and the UR20 from $72,100, a difference of $32,100.

Do both robots carry 20 kg?

Yes. Both are rated for 20 kg.

Which robot has the longer reach?

The JAKA Zu 20 reaches 1780 mm and the UR20 1750 mm.

Which robot is more precise?

The JAKA Zu 20 publishes ±0.05 mm repeatability and the UR20 ±0.1 mm.

Are both rated IP65?

Yes. Both arms are rated IP65.

Which robot should I buy?

Choose the JAKA Zu 20 for value. Choose the UR20 for speed and force control.