Wholesale Heidenhain Workpiece touch probes TS740 Products, Suppliers

The TS 740 triggering touch probe is particularly characterized by high probe accuracy and repeatability. These features, together with the low probing force of the TS 740, make it suitable for very demanding measuring tasks on machine tools. 

Product Description

Product Features

The Heidenhain touch probe TS740 utilizes a high-precision pressure sensor, where the trigger pulse is obtained through comprehensive force analysis. The forces acting during probing are processed electronically, providing an extremely homogeneous probe accuracy over 360°.
Multi-Sensor Pressure Measurement
Stylus deflection is measured by multiple pressure sensors arranged between the contact plate and the probe housing. Deflection forces act directly on the sensors to generate immediate trigger signals.
High Accuracy & Repeatability
Relatively low probing forces ensure high probe accuracy and repeatability, offering precise trigger characteristics evenly across all probing directions.

Technical Specifications

Workpiece Touch Probe Radio and Infrared Infrared Transmission
TS 460 TS 642 TS 740
Probe Accuracy ≤ ±5 μm (with standard stylus T404) ≤ ±1 μm (with standard stylus T404)
Probe Repeatability
(From one direction)
2 s ≤ 1 μm at 1 m/min
Typical: 2 s ≤ 1 μm at 3 m/min | 2 s ≤ 4 μm at 5 m/min
2 s ≤ 0.25 μm at probing velocity of 0.25 m/min
Deflection of Probe ≤ 5 mm in all directions (stylus length L = 40 mm)
Deflection Force Axial: Approx. 8 N | Radial: Approx. 1 N Axial: Approx. 0.6 N | Radial: Approx. 0.2 N
Probing Velocity ≤ 5 m/min ≤ 0.25 m/min
Collision Protection Optional
Protection (EN 60529) IP68
Operating Temperature 10 °C to 40 °C
Storage Temperature –20 °C to 70 °C
Mass (w/o taper shank) Approx. 0.2 kg Approx. 1.1 kg
Fastening* • Taper shank
• M12x0.5 external thread
• Taper shank
• Connecting thread M30x0.5 (w/o shank)
Signal Transmission Radio & Infrared (360° range to SE) Infrared transmission (360° range)
Transmission Angle* 0° or +30°
Interface* HTL, EnDat 2.2 HTL
Transceiver Unit* • SE 661/SE 660 (Radio & IR)
• SE 642 / SE 540 (IR)
SE 540, SE 642, or SE 660 (IR only) SE 540 or SE 642
TS Switch-On/Off Radio or Infrared signal from SE Shank switch or Infrared signal from SE Infrared signal from SE
Voltage Supply 2x 1V to 4V batteries (Size 1/2 AA or LR2) 2x 1V to 4V batteries (Size C or Size A4)
Operating Time ~90 h (Alkaline) / ~400 h (Lithium) ~400 h (Alkaline) / ~800 h (Lithium) ~220 h (Alkaline) / ~500 h (Lithium)
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Frequently Asked Questions (FAQ)

Q1: What technology makes the HEIDENHAIN TS 740 offer higher accuracy?
The TS 740 utilizes multiple high-precision pressure sensors situated between the contact plate and probe housing. Electronic signal processing analyzes deflection forces to achieve high probe accuracy (≤ ±1 μm) and superior 360° homogeneous probing characteristics.
Q2: What is the probe repeatability of the Heidenhain TS 740?
The TS 740 delivers an exceptional probe repeatability of 2 s ≤ 0.25 μm when probing from one direction at a probing velocity of 0.25 m/min.
Q3: How does signal transmission work for the TS 740 touch probe?
The TS 740 uses 360° infrared transmission to send trigger signals and receive switch-on/off signals from compatible transceiver units such as the SE 540 or SE 642.
Q4: What are the deflection force requirements for the TS 740 probe?
The TS 740 operates with extremely low deflection forces—approximately 0.6 N axially and 0.2 N radially—preventing workpiece deformation during measurement.
Q5: What battery life can be expected from the TS 740 touch probe?
With standard alkaline batteries (Size C or A4), operating time is typically 220 hours. When using high-capacity lithium batteries, operating time can reach up to 500 hours.
Q6: What environmental protection rating does the TS 740 carry?
The TS 740 features an IP68 protection rating according to EN 60529, making it fully protected against dust ingress and continuous immersion in liquid inside machine tool environments.

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