2-Stage Telescope Actuator

Overview of 2-Stage Telescope Actuators

The 2-stage telescope actuator is a linear drive system, which offers the right solution for various application areas in mechanical engineering for large travels with limited spatial requirements.

The compact design elements of A.MANNESMANN offer small structural dimensions with the highest precision in performance.

Excellent space gain of up to 262% through 2-stage design

High Flexibility in Application

The linear actuator is a functional unit that can be used to implement demanding drive and positioning tasks. These tasks include displacement movements of components with complex, path-dependent processes as well as pressing and joining tasks with direct force-path evaluation.

Application Areas

The compressed design opens up a variety of opportunities. The 2-stage telescope actuators achieve both precise travel movements in machine tool precision as well as the high power transmissions that are required in press and jig construction.

2-stage telescope actuators are used in a variety of ways in mechanical and plant engineering where more space is required, such as in aerospace, special machine construction or process engineering.

Telescope actuators for all installation positions

Advantages at a Glance

Economical advantages

Space gain through compressed design
High long-term durability / service life
Economical standard designs or custom production
Allows for compact mechanical engineering solutions in a small space
Low power loss
Excellent energy efficiency
Maximum long-term precision
Maximum possible machine availability
Perfected wear resistance due to nitrided spindle

Technical advantages

Small block dimensions
Maximum positioning capability and repeatability
Exact travel movements
High rigidity
Large travel (< 262%)
Backlash-free, preloaded double nuts
Ball screw spindles with ground precision (accuracy IT 3)
Constant torque
Very low power losses
Uniformly low operating temperatures
Can be used in all installation positions
The highest power transmission rates
Extremely high degree of efficiency (up to 98%)

Detailed Structure

The 2-stage telescope actuator is marked as follows:

Telescopic ball screws
Unilateral
Compact design
High extension ratio
High effective pitch
Central torque introduction
Driven spindle
Driven nut

In the event of a space gain of up to 262%, A.MANNESMANN telescope actuators work with large axial load capacity with extreme precision. The patented 2-stage telescope actuators convert the central rotatory drive motion of the motor into an axial translation movement through a telescopic ball screw.

Telescopic ball screws consist of two nested precision ball screws. The resulting partial movements split according to the thread pitches and occur absolutely synchronously.

The highest precision positioning and repeat accuracies are achieved through backlash-free, preloaded double nuts and ball screw spindles with ground precision in the accuracy quality IT 3.

High long-term durability is formed by perfect machining at A.MANNESMANN with high quality materials and heat treatment with the highest hardness.

The torque and the very high degree of efficiency of the telescopic levels of more than 90% are constant across the entire travel. Only in this way do very low power losses and evenly low operating temperatures result.

Standards and Custom-Made Production

We provide 2-stage telescope actuators in five standard sizes with different travel and axial forces in the tensile and compressive direction.

In addition, we produce your custom telescope actuators as special solutions with extensive accessories as part of our individual production. We precisely adapt the telescope actuators to your application conditions.

A.MANNESMANN Product Data

We will be happy to provide you with custom component drawings and dimensions of the 2-stage telescope actuators created according to your requirements after consultation for use in your CAD system to complete your planning documents.

Standard designs for 2-stage telescope actuators

Technical data	Type	Standard 1	Standard 2	Standard 3	Standard 4	Standard 5
Installation size	mm	32	40	50	63	80
Total pitch	mm	10	10	20	30	40
Telescopic levels		2	2	2	2	2
Pitch per level	mm	5	5	10	15	20
Ball size	mm	3.5	3.5	6	8	10
Dynamic load rating	kN	29	34	67	110	166
Static load rating	kN	39	58	140	233	377
Max. dynamic axial load	kN	6.4	7.6	18.8	35.6	59
Max. static axial load	kN	10	14,5	35	58	94
Basic installation length	mm	200	220	260	300	350
Max. travel	mm	1,000	1,500	2,000	2,500	3,000
Min. installation length *	mm	700	970	1.260	1.550	1.850
Max. installation length*	mm	1,700	2,470	3,260	4,050	4,850
Extension ratio*		2.43	2.55	2.59	2.61	2.62
Positioning accuracy	μm	16	16	16	16	16
Max. operating speed	rpm	1,500	1,500	1,200	1,000	800
Max. travel speed	m/min	15	15	24	30	32
* in relation to the max. travel