LTM Electrodynamic Testing Machine

Industries

Medical
Electronics

Test load

1 kN - 10 kN

Type of test

Fatigue
Tensile
Compression

Standards

ISO 18489
ASTM F2193
ISO 14801
ASTM F1798
ASTM F1717

The linear motor testing machine - an all around machine for the small force range

The LTM electrodynamic testing machines are used to determine the durability of materials and components in the finite life fatigue and high cycle fatigue ranges.

The LTM’s wide speed range allows it to be used for both dynamic fatigue tests and quasi-static tests. The oil-free drive, combined with ease of installation, makes the electrodynamic testing machine ideal for use in biomedical engineering and electronics, as well as for research and training. Typical examples include tests on hip-joint and knee replacements and dental implants. Other applications are tests on standard plastics and composites specimens, as well as aluminum and plastics CT and SEB specimens.

The electrodynamic testing machine is available with loads of 1, 2, 3, 5 and 10 kN.

LTM Electrodynamic Testing Machine

Range of application for the LTM electrodynamic testing machine

Advantages & Features

Description

The LTM is an electrodynamic testing machine with a drive based on linear motor technology. ZwickRoell's newly developed patented drive concept enables the LTM to be used for both dynamic and static materials and components testing. The low moved mass of the drive provides ideal conditions for performing fatigue tests with tensile, compression, and flexural loading.

The LTM is used in industries where oil-free and low-noise drive technology are preferred, for example, in the medical industry for standard-compliant testing of hip joint, knee, or dental implants.

Other typical application examples include fatigue and durability tests on standard specimens made of plastics, fiber composites and metals.

For components testing, the LTM is equipped with a T-slotted plate that can be adapted to components, and test fixtures quickly and easily as standard.

Intuitive operation via testXpert R and testXpert III software makes the LTM a genuine all-rounder for industrial purposes as well as for research and teaching at university level.

Advantages

High dynamic performance due to low moving mass
Wide speed-range enables dynamic as well as quasi-static tests
Low operating and maintenance costs with oil-free drive technology without additional supply feeds
Motor-driven traverse adjustment for convenient operation
safe setup mode as per EN 60204-1 via speed reduction to 10 mm/s
Simple manual crosshead locking via hand lever with electrical monitoring and LED status indicator
Long piston-stroke (60 mm) enables wide variety of applications
Operator-friendly testXpert R testing software with preset controller settings and availability of free controller definition for dynamic testing requirements
Intelligent testing software testXpert III featuring intuitive operation for static testing requirements.
Flexible use of specimen grips and fixtures over the entire dynamic product range
The electromagnetic drive was designed specifically for the speed range relevant to testing technology and features exceptionally quiet operation, optimum control quality and extremely high positioning accuracy
The travel measuring system is coaxial to the test axis and mounted near the specimen in the piston rod, enabling high positioning repeatability and precise piston travel measurement

Test frequencies

The test frequencies, which are up to 100 Hz depending on the test, ensure short test times and with that high specimen throughput.

Connections

The linear motor does not require any additional media connections such as for pneumatics, coolant or oil. This lowers maintenance and installation costs.

Software

Operation is via testXpert R testing software for dynamic tests and testXpert III for static tests. It is intuitive and specifically adapted for the test tasks.

Learn more about the testXpert R testing software

Learn more about the testXpert III testing software

Maintenance-free operation

Wear-free components ensure maintenance-free operation.

Technical overview

Type	LTM 1 Standard	LTM 1 + 400 mm¹	LTM 1 HR Standard	LTM 1 HR + 400 mm¹
Item No.	1045232	1053558	3006625	3006626
Fmax, dynamic	± 1000	± 1000	± 1000	± 1000	N
Fmax, static continuous	± 910	± 910	± 910	± 910	N
Piston stroke	60	60	60	60	mm
Positioning accuracy and repeatability	± 2	± 2	± 2	± 2	μm
Speed range	1	1	1	1	mm/min
	1.5	1.5	2	2	m/s
Maximum frequency²	100	100	120	120	Hz
Max. noise level at 1 m distance³	< 61	< 61	< 61	< 61	dB(A)
Typical noise level at 1 m distance³	< 45	< 45	< 45	< 45	dB(A)
Test frame
Overall height of testing machine, max. (A)⁴	1455	1855	1455	1855	mm
Overall height of the testing machine with optional base, max. (E)⁴	2104	2504	2104	2504	mm
Overall height of the test frame, max. (F)	906	1306	906	1306	mm
Overall height of the test frame with feet, max. (B)	945	1345	945	1345	mm
Overall width of the test frame	665	665	665	665	mm
Overall depth of the test frame	525	525	525	525	mm
Column diameter	65	65	65	65	mm
Frame stiffness at 500 mm crosshead separation	25	40	25	40	kN/mm
Height, base (G)	692	692	692	692	mm
Width, base	800	800	800	800	mm
Depth, base	700	700	700	700	mm
Overall weight⁵	210	270	210	270	kg
Test area
Test area width	460				mm
Test area height without load cell, max. (D)⁴⁶	640				mm
Test area height with load cell, max. (C)⁴⁶	550				mm
Top crosshead adjustment	Motorized
Top crosshead clamping	Manual
Crosshead clamping electrically monitored	Yes, with signal indicator
Test area width		460	460	460
Test area height without load cell, max. (D)⁴⁶		1040	640	1040
Test area height with load cell, max. (C)⁴⁶		950	550	950
Top crosshead adjustment	Motorized
Top crosshead clamping	Manual
Crosshead clamping electrically monitored	Yes, with signal indicator

Extended load frame - required for use with a temperature chamber
Depending on load ratio (r-ratio) and test amplitude
Depending on output required, the environment, test arrangement, type of test, frequency of the specimen, determined in a free field to DIN EN ISO 11205
Highest crosshead position
Testing machine only, without electrical cabinet, tools, and options
Median piston position

Type	LTM 2 Standard	LTM 2 + 400 mm¹	LTM 2 HR Standard	LTM 2 HR + 400 mm²
Item No.	1045234	1053560	3006627	3006628
Fmax, dynamic	± 2000	± 2000	± 2000	± 2000	N
Fmax, static continuous	± 1400	± 1400	± 1400	± 1400	N
Piston stroke	60	60	60	60	mm
Positioning accuracy and repeatability	± 2	± 2	± 2	±2	μm
Speed range	1	1	1	1	mm/min
	1	1	2	2	m/s
Maximum frequency³	100	100	120	120	Hz
Max. noise level at 1 m distance⁴	< 61	< 61	< 61	< 61	dB(A)
Typical noise level at 1 m distance⁴	< 45	< 45	< 45	< 45	dB(A)
Test frame
Overall height of testing machine, max. (A)⁵	1535	1935	1455	1855	mm
Overall height of the testing machine with optional base, max. (E)⁵	2104	2504	2104	2504	mm
Overall height of the test frame, max. (F)	906	1306	906	1306	mm
Overall height of the test frame with feet, max. (B)	945	1345	945	1345	mm
Overall width of the test frame	665	665	665	665	mm
Overall depth of the test frame	525	525	525	525	mm
Column diameter	65	65	65	65	mm
Frame stiffness at 500 mm crosshead separation	25	40	25	40	kN/mm
Height, base (G)	692	692	692	692	mm
Width, base	800	800	800	800	mm
Depth, base	700	700	700	700	mm
Overall weight⁶	210	270	210	270	kg
Test area
Test area width	460	460	460	460	mm
Test area height without load cell, max. (D)⁵⁷	640	1040	640	1040	mm
Test area height with load cell, max. (C)⁵⁷	550	950	550	950	mm
Top crosshead adjustment	Motorized
Top crosshead clamping	Manual
Crosshead clamping electrically monitored	Yes, with signal indicator

Extended load frame - required for use with a temperature chamber
Extended load frame (required for use with a temperature chamber)
Depending on load ratio (r-ratio) and test amplitude
Depending on output required, the environment, test arrangement, type of test, frequency of the specimen, determined in a free field to DIN EN ISO 11205
Highest crosshead position
Testing machine only, without electrical cabinet, tools, and options
Median piston position

Type	LTM 2 Standard	LTM 2 + 400 mm¹	LTM 2 HR Standard	LTM 2 HR + 400 mm²
Item No.	1045234	1053560	3006627	3006628
Fmax, dynamic	± 2000	± 2000	± 2000	± 2000	N
Fmax, static continuous	± 1400	± 1400	± 1400	± 1400	N
Piston stroke	60	60	60	60	mm
Positioning accuracy and repeatability	± 2	± 2	± 2	±2	μm
Speed range	1	1	1	1	mm/min
	1	1	2	2	m/s
Maximum frequency³	100	100	120	120	Hz
Max. noise level at 1 m distance⁴	< 61	< 61	< 61	< 61	dB(A)
Typical noise level at 1 m distance⁴	< 45	< 45	< 45	< 45	dB(A)
Test frame
Overall height of testing machine, max. (A)⁵	1535	1935	1455	1855	mm
Overall height of the testing machine with optional base, max. (E)⁵	2104	2504	2104	2504	mm
Overall height of the test frame, max. (F)	906	1306	906	1306	mm
Overall height of the test frame with feet, max. (B)	945	1345	945	1345	mm
Overall width of the test frame	665	665	665	665	mm
Overall depth of the test frame	525	525	525	525	mm
Column diameter	65	65	65	65	mm
Frame stiffness at 500 mm crosshead separation	25	40	25	40	kN/mm
Height, base (G)	692	692	692	692	mm
Width, base	800	800	800	800	mm
Depth, base	700	700	700	700	mm
Overall weight⁶	210	270	210	270	kg
Test area
Test area width	460	460	460	460	mm
Test area height without load cell, max. (D)⁵⁷	640	1040	640	1040	mm
Test area height with load cell, max. (C)⁵⁷	550	950	550	950	mm
Top crosshead adjustment	Motorized
Top crosshead clamping	Manual
Crosshead clamping electrically monitored	Yes, with signal indicator

Extended load frame - required for use with a temperature chamber
Extended load frame (required for use with a temperature chamber)
Depending on load ratio (r-ratio) and test amplitude
Depending on output required, the environment, test arrangement, type of test, frequency of the specimen, determined in a free field to DIN EN ISO 11205
Highest crosshead position
Testing machine only, without electrical cabinet, tools, and options
Median piston position

Type	LTM 3 Standard	LTM 3 + 170 mm¹	LTM 3 HR Standard	LTM 3 HR + 170 mm¹
Item No.	1045235	1053564	1056879	1058953
Fmax, dynamic	± 3000	± 3000	± 3000	± 3000	N
Fmax, static continuous	± 2100	± 2300	± 2300	± 2100	N
Piston stroke	60	60	60	60	mm
Positioning accuracy and repeatability	± 2	± 2	± 2	± 2	μm
Speed range	1	1	1	1	mm/min
	1	1	1.5	1.5	m/s
Maximum frequency²	100	100	120	120	Hz
Max. noise level at 1 m distance³	< 63	< 63	< 63	< 63	dB(A)
Typical noise level at 1 m distance³	< 46	< 46	< 46	< 46	dB(A)
Test frame
Overall height of testing machine, max. (A)⁴	1760	1935	1765	1930	mm
Overall height of the testing machine with optional base, max. (E)⁴	2420	2584	2414	2590	mm
Overall height of the test frame, max. (F)	1140	1345	945	1310	mm
Overall height of the test frame with feet, max. (B)	1175	1386	986	1345	mm
Overall width of the test frame	665	665	665	665	mm
Overall depth of the test frame	525	525	525	525	mm
Column diameter	65	65	65	65	mm
Frame stiffness at 500 mm crosshead separation	40	40	40	40	kN/mm
Height, base (G)	692	692	692	692	mm
Width, base	800	800	800	800	mm
Depth, base	700	700	700	700	mm
Overall weight⁵	305	310	305	310	kg
Test area
Test area width	460	460	460	460	mm
Test area height without load cell, max. (D)⁴⁶	870	1040	870	1040	mm
Test area height with load cell, max. (C)⁴⁶	780	950	550	950	mm
Top crosshead adjustment	Motorized
Top crosshead clamping	Manual
Crosshead clamping electrically monitored	Yes, with signal indicator

Extended load frame - required for use with a temperature chamber
Depending on load ratio (r-ratio) and test amplitude
Depending on output required, the environment, test arrangement, type of test, frequency of the specimen, determined in a free field to DIN EN ISO 11205
Highest crosshead position
Testing machine only, without electrical cabinet, tools, and options
Median piston position

Type	LTM 3 Standard	LTM 3 + 170 mm¹	LTM 3 HR Standard	LTM 3 HR + 170 mm¹
Item No.	1045235	1053564	1056879	1058953
Fmax, dynamic	± 3000	± 3000	± 3000	± 3000	N
Fmax, static continuous	± 2100	± 2300	± 2300	± 2100	N
Piston stroke	60	60	60	60	mm
Positioning accuracy and repeatability	± 2	± 2	± 2	± 2	μm
Speed range	1	1	1	1	mm/min
	1	1	1.5	1.5	m/s
Maximum frequency²	100	100	120	120	Hz
Max. noise level at 1 m distance³	< 63	< 63	< 63	< 63	dB(A)
Typical noise level at 1 m distance³	< 46	< 46	< 46	< 46	dB(A)
Test frame
Overall height of testing machine, max. (A)⁴	1760	1935	1765	1930	mm
Overall height of the testing machine with optional base, max. (E)⁴	2420	2584	2414	2590	mm
Overall height of the test frame, max. (F)	1140	1345	945	1310	mm
Overall height of the test frame with feet, max. (B)	1175	1386	986	1345	mm
Overall width of the test frame	665	665	665	665	mm
Overall depth of the test frame	525	525	525	525	mm
Column diameter	65	65	65	65	mm
Frame stiffness at 500 mm crosshead separation	40	40	40	40	kN/mm
Height, base (G)	692	692	692	692	mm
Width, base	800	800	800	800	mm
Depth, base	700	700	700	700	mm
Overall weight⁵	305	310	305	310	kg
Test area
Test area width	460	460	460	460	mm
Test area height without load cell, max. (D)⁴⁶	870	1040	870	1040	mm
Test area height with load cell, max. (C)⁴⁶	780	950	550	950	mm
Top crosshead adjustment	Motorized
Top crosshead clamping	Manual
Crosshead clamping electrically monitored	Yes, with signal indicator

Extended load frame - required for use with a temperature chamber
Depending on load ratio (r-ratio) and test amplitude
Depending on output required, the environment, test arrangement, type of test, frequency of the specimen, determined in a free field to DIN EN ISO 11205
Highest crosshead position
Testing machine only, without electrical cabinet, tools, and options
Median piston position

Type	LTM 5 Standard	LTM 5 + 250 mm¹	LTM 10 Standard	LTM 10 + 250 mm¹
Item No.	1008107	3001848	1008108	3001847
Fmax, dynamic	±5	± 5	± 10	± 10	kN
Fmax, static continuous	±3.5	± 3.5	± 7	± 7	kN
Piston stroke	60	60	60	60	mm
Positioning accuracy and repeatability	±2	±2	±2	±2	μm
Speed range	1	1	1	1	mm/min
	1.5	1.5	1.0	1.0	m/s
Maximum frequency²	100	100	100	100	Hz
Max. noise level at 1 m distance³	< 68	< 68	< 68	< 68	dB(A)
Test frame
Overall height of testing machine, max. (A)⁴	2510	2760	2715	2965	mm
Overall height of the test frame with feet, max. (B)	1980		1980		mm
Overall width of the test frame	860		860		mm
Overall depth of the test frame	850		850		mm
Height of mounting table (C)	720	720	720	720	mm
Column diameter	65	65	65	65	mm
Frame stiffness at 1000mm crosshead separation	300	300	300	300	kN/mm
Overall weight⁵	941	966	1040	1065	kg
Test area
Test area width	460	460	460	460	mm
Test area height, max. (D)⁴⁶	1106		1106		mm
Test area width without load cell, max. (E)⁴⁶	920		920		mm
Test area height with load cell, max. (F)⁴⁶	781	1031	781	1031	mm
Top crosshead adjustment	Motorized
Top crosshead clamping	Manual
Crosshead clamping electrically monitored	Yes, with signal indicator
Overall height of the test frame, max. (B)		2230		2230
Overall width		860		860
Overall depth		850		850
Test area height, max. (D)⁴		1356		1356
Test area height without load cell, max. (E)⁴⁶		1170		1170

Extended load frame - required for use with a temperature chamber
Depending on load ratio (r-ratio) and test amplitude
Depending on output required, the environment, test arrangement, type of test, frequency of the specimen, determined in a free field to DIN EN ISO 11205
Highest crosshead position
Testing machine only, without electrical cabinet, tools, and options
Median piston position

Type	LTM 5 Standard	LTM 5 + 250 mm¹	LTM 10 Standard	LTM 10 + 250 mm¹
Item No.	1008107	3001848	1008108	3001847
Fmax, dynamic	±5	± 5	± 10	± 10	kN
Fmax, static continuous	±3.5	± 3.5	± 7	± 7	kN
Piston stroke	60	60	60	60	mm
Positioning accuracy and repeatability	±2	±2	±2	±2	μm
Speed range	1	1	1	1	mm/min
	1.5	1.5	1.0	1.0	m/s
Maximum frequency²	100	100	100	100	Hz
Max. noise level at 1 m distance³	< 68	< 68	< 68	< 68	dB(A)
Test frame
Overall height of testing machine, max. (A)⁴	2510	2760	2715	2965	mm
Overall height of the test frame with feet, max. (B)	1980		1980		mm
Overall width of the test frame	860		860		mm
Overall depth of the test frame	850		850		mm
Height of mounting table (C)	720	720	720	720	mm
Column diameter	65	65	65	65	mm
Frame stiffness at 1000mm crosshead separation	300	300	300	300	kN/mm
Overall weight⁵	941	966	1040	1065	kg
Test area
Test area width	460	460	460	460	mm
Test area height, max. (D)⁴⁶	1106		1106		mm
Test area width without load cell, max. (E)⁴⁶	920		920		mm
Test area height with load cell, max. (F)⁴⁶	781	1031	781	1031	mm
Top crosshead adjustment	Motorized
Top crosshead clamping	Manual
Crosshead clamping electrically monitored	Yes, with signal indicator
Overall height of the test frame, max. (B)		2230		2230
Overall width		860		860
Overall depth		850		850
Test area height, max. (D)⁴		1356		1356
Test area height without load cell, max. (E)⁴⁶		1170		1170

Extended load frame - required for use with a temperature chamber
Depending on load ratio (r-ratio) and test amplitude
Depending on output required, the environment, test arrangement, type of test, frequency of the specimen, determined in a free field to DIN EN ISO 11205
Highest crosshead position
Testing machine only, without electrical cabinet, tools, and options
Median piston position

testControl II measurement and control electronics
Control frequency	10 kHz
Measured value acquisition	10 kHz, 24 bits, arithmetical
Slots	5 x module bus
PC interface	GigaBit Ethernet
Integrated safety concept	- 2-channel specification for maximum safety
	- interface for interlocked safety doors
	- Emergency Stop link interface
Display-equipped remote control unit	set-up or testing mode
	- Emergency Stop button
	key-switch for switching between setup and testing modes
Dimensions
Height	750	mm
Width	600	mm
Depth	600	mm
Weight approx.	102	kg
Length of cable between LTM & testControl II	500	mm
Protection class	IP 54

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Interesting Applications in the Medical Industry

Dental Implants

ISO 14801

Testing solutions for dynamic fatigue testing of dental implants

to Dental Implants

Bone plates

ASTM F382 and ISO 9585

Flexure test on metallic bone plates and fixation devices to ASTM F382 and ISO 9585 (osteosynthesis plates)

to Bone plates

Knee Implants

ASTM F1800 and ISO 14879

Fatigue tests on the tibial plateau of artificial knee joints to ASTM F1800 and ISO 14879.

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Spinal implants

ISO 12189-8, ASTM F1717 and ASTM F2706

In addition to purely axial tensile, compression and flexure tests, a pure or combined torsion load can be applied to spinal systems in compliance with standards including ASTM F1717-9, ASTM F2706-8 or ISO 12189-08.

to Spinal implants