Laser alignment system XT920

shaftrollfor machine tools

Overview
The Easy-Laser® XT920 Geometric measurement system is a modular solution for geometrical measurement in industrial environments. It measures straightness, flatness, squareness, parallelism and level across a wide range of applications. The system offers a choice of four laser transmitters (XT20, XT21, XT22, XT23) and includes commonly used brackets; it is expandable to cover future measurement needs.

Choose the right laser transmitter
With XT920 you can select XT20, XT21, XT22 or XT23. XT22 provides the longest range and the most advanced optics; selection depends on measurement range, beam diameter and required features for current and future tasks.

One detector, multiple applications
The XT7 geometrical detector supports stationary and spinning laser beams, enabling addition of transmitters for new applications while retaining the same detector. The detector features a large front display for guided setup and measurement, TruePSD 20x20 mm sensor, Bluetooth communication and IP66/67 ingress protection.

Adapt the system to your needs
XT920 is supplied with a set of useful brackets. Add standard accessories or design custom brackets for specific tasks. The PSD position in XT7 matches the XT70-M unit, simplifying combinations of brackets and components across XT systems.

Key strengths

• High measurement precision — precision laser transmitters and the XT7 detector deliver accurate readings suitable for demanding industrial measurement tasks.
• Versatile bracketing — brackets designed for stability, repeatability and efficient setup.
• Multi-platform compatibility — interfaces with Easy-Laser display units and iOS/Android devices for data viewing and recording.

Commonly used programs (examples)

• Basic flatness — Check flatness of foundations and frames using two rows of points (2–8 points per row). Requires a separate laser transmitter.
• Straightness — Measure long shafts, rolls, bearing journals, bases, rails and machine structures. Provides horizontal and vertical alignment results both graphically and numerically; automatic Best-fit calculations. (Requires XT20 or XT22 transmitter.)
• Values – Extended applications — Supports most geometrical measurements with suitable units and brackets; useful for complete machine installation. Interface can show up to four units and supports automatic recording and notes per measurement point.

System parts (examples included or selectable)

• XT20 Laser transmitter
• XT21 Laser transmitter
• XT22 Laser transmitter
• XT23 Laser transmitter
• XT7 Detector
• Multi bracket for laser transmitter
• Magnet base with turnable head
• Offset bracket
• Rods, extendable

A complete system contains (standard items)

• 1 Detector XT7
• 1 Remote control
• 1 Multi bracket for XT laser transmitter
• 1 Magnet base with turnable head
• 2 Magnet base
• 2 Offset bracket
• 4 Rods 75 mm [2.95"]
• 8 Rods 120 mm [4.72"]
• 1 Measuring tape 5 m [16.4']
• 1 Charger (100–240 V AC)
• 1 DC split cable for charging
• 1 DC to USB adapter, for charging
• 1 Cleaning cloth for optics
• 1 USB memory with manuals
• 1 Hexagon wrench set
• 1 Mounting screws for XT Laser transmitter
• 1 Carrying case with wheels
• Add the laser transmitter of your choice: XT20, XT21, XT22 or XT23

Notes on detectors and transmitters
The XT7 detector detects stationary and spinning beams, has a 2-axis TruePSD 20x20 mm sensor, Bluetooth wireless, internal Li-ion battery, resolution 0.001 mm and typical operating time up to 16 hours. XT transmitters vary by range, beam diameter and features (XT20/XT21/XT22/XT23).

Specifications

• System name: XT920 Geometric
• Brand: Easy-Laser®
• Detector: XT7 — 2-axis TruePSD 20x20 mm; Bluetooth wireless; internal Li-ion battery; operating time up to 16 h; resolution 0.001 mm; measurement accuracy stationary beam ±0.001 mm ±1%, spinning beam ±0.01 mm ±1%; electronic inclinometer 0.1° resolution; thermal sensors ±1°C; IP66/67; dimensions WxHxD: 76 x 76.6 x 46.4 mm; weight 241 g.
• XT20 Laser transmitter — diode laser; wavelength 630–680 nm; Laser Safety Class 2; output < 1 mW; beam diameter 6 mm at aperture, 10 mm at 20 m; measurement range 20 m radius; Bluetooth wireless; Li‑Ion battery; operating time up to 30 h; warmup 15 min; operating temp -10–50 °C; environmental protection IP55; display 240x240 px; housing anodized aluminium + PC/ABS + TPU; dimensions WxHxD 147x126x152 mm; weight 2065 g.
• XT21 Laser transmitter — diode laser; wavelength 630–680 nm; Class 2; output < 1 mW; beam diameter 6 mm at aperture, ~10 mm at 12 m; measurement range up to 12 m; Li‑Ion battery; operating time up to 16 h; warmup 15 min; storage -20–50 °C; relative humidity 10–95%.
• XT22 Laser transmitter — fiber-coupled diode laser; wavelength 630–680 nm; Class 2; output < 1 mW; beam diameter 6 mm at aperture, 13 mm at 40 m; measurement range 40 m radius; Bluetooth wireless; Li‑Ion battery; operating time up to 30 h; warmup 15 min; operating temp -10–50 °C; laser plane flatness ±0.01 mm/m.
• XT23 Laser transmitter — diode laser; wavelength 630–680 nm; Class 2; output < 1 mW; beam diameter 6 mm at aperture, 13 mm at 40 m; measurement range 20–40 m depending on communications; Bluetooth wireless (40 m range noted); Li‑ion battery; operating time up to 16 h; warmup 15 min; operating temp 0–50 °C in some models; laser plane flatness ±0.01 mm/m; squareness between beams ±0.01 mm/m (model dependent).
• General environmental and usability: Components designed for outdoor/industrial use; relative humidity typically 10–95%; storage temperatures typically -20–50 °C; housings in anodized aluminium, PC/ABS and TPU; system expandable via accessories and brackets.