Pipe lasers · Beam colour, grade setting and alignment, auto-alignment and target acquisition, remote control, battery life, housing, mounting in pipe or manhole, and laser safety class
A pipe laser sits in the pipe or manhole and projects a beam along the design line and slope so each new pipe section can be set to the right grade and direction. Settle three things before asking for quotes: the grade range and alignment control the job needs, the beam, targeting and remote control that suit your pipe sizes and crew, and the battery, housing and laser class for the site.
Pipe lasers and laser guidance systems for laying gravity sewer, drainage, water and utility pipe and for trenching and tunnelling alignment. Rotating construction lasers, machine-control GPS guidance, laser trackers and forklift laser guides are outside this page; GPS guidance systems have their own page.
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01
Topcon states that pipe lasers align and level pipe during installation of water, sewer and utility lines by projecting a highly visible red or green beam along the pipe axis to ensure alignment, grade and depth, and lists sewer lines and trenchless work among their uses. [1]
Its TP-L6 targets pipe that must be laid to set slopes, along with trenching, sewer, mining and tunnelling projects. The TP-L6GV, AV and G models add scanning auto-alignment that finds the left and right edges of the target and centres the beam for one-person setup, with a laser plummet on the AV and GV. Through Topcon's Laser Manager app the crew can set or calculate slope, move the beam left, right or centre, check grade status, switch between steady, flashing and low-power modes and view the electronic bubble remotely, which Topcon says reduces time spent climbing into manholes. [2]
Give the supplier the pipe diameters and minimum invert space, grade range and grade resolution needed, run length, beam colour, auto-alignment and target needs, remote control, battery life and charging, housing protection, mounting accessories (pipe legs, manhole mounts, trivets), laser class required on site, and quantity.
02
Topcon lists 60 hours of battery life for the TP-L6 — enough for a working week on one charge — with a locking battery pack that also powers other Topcon site equipment, a 20% battery increase over earlier lasers, a rugged cast aluminium waterproof housing, a removable handle and a large illuminated LCD. [2]
US rules (21 CFR 1040.10) require every laser product to be classified in Class I, IIa, II, IIIa, IIIb or IV by the highest accessible emission during operation; Class II visible levels are a chronic viewing hazard, Class IIIa an acute intrabeam viewing hazard depending on irradiance, and Class IIIb an acute hazard to skin and eyes. Ask for the class marked on the unit and match site eye-safety rules to it. [3]
Editorial calculation: 60 hours covers five 12-hour shifts; on sites running longer or in cold weather, plan a spare battery so the laser is not lifted out mid-run to recharge. [2]
03
Leica Geosystems' Piper Series data sheet gives full figures for its Piper 100 and Piper 200 pipe lasers: a red 635 nm beam (Class 3R, 4.75–4.8 mW) or a green 520 nm beam (Class 2M at 1.2 mW, or Class 3R), a working range below 200 m, a grade range of −10% to +25%, a self-levelling range of −15% to +30%, and self-levelling accuracy of ±1.5 mm at 30 m, defined at 25 °C. The unit is 96 mm in diameter and 267 mm long, fits inside a 100 mm pipe, weighs 2.0 kg, has a cast aluminium IPx8 housing, runs up to 40 h on a Li-ion battery with a 4 h charge, and operates from −20 °C to +50 °C. The housing can roll up to ±3° with automatic grade compensation, and the remote works up to 150 m in front and 10 m behind. Only the Piper 200 has auto targeting. [4]
Editorial calculation: ±1.5 mm at 30 m is ±0.05 mm per metre, or ±0.005% of grade; on a sewer laid at 1% the fall over 30 m is 300 mm, so the stated levelling error is 0.5% of that fall. The 40 h battery figure covers about three 12-hour shifts, against the 60 h Topcon states for its TP-L6, and the data sheet notes that battery times depend on site conditions. [4] [2]
| Data sheet field | Piper 100 / 200 value | What to compare |
|---|---|---|
| Grade range | −10% to +25% [4] | Steepest and flattest design grade. |
| Self-levelling accuracy | ±1.5 mm at 30 m, at 25 °C [4] | Accuracy at your run length. |
| Working range | <200 m [4] | Longest manhole-to-manhole run. |
| Beam and class | 635 nm red or 520 nm green; 3R or 2M [4] | Site laser rules; visibility. |
| Battery | Li-ion, up to 40 h; 4 h charge [4] | Shifts per charge. |
| Size and weight | 96 × 267 mm; 2.0 kg [4] | Smallest pipe to work in. |
04
The companies in the manufacturer list below show this product on their own websites. Confirm the legal seller, factory and scope for your order.
Ask each supplier for grade range, grade accuracy, working range, beam colour and class, self-levelling and alignment features, battery life and housing rating. [2] [3]
05
This is a functional reference built from the sources cited; it is not a full specification.
| Part | What it controls | Fix in the order |
|---|---|---|
| Laser source and beam | Visibility; class. [1] [3] | Red or green; class. |
| Grade mechanism | Slope. [2] | Range; resolution. |
| Line control and auto-alignment | Direction. [2] | Auto or manual. |
| Remote app or control | Adjustment from surface. [2] | App; remote. |
| Battery and housing | Run time; protection. [2] | Hours; waterproofing. |
06
A pipe laser quotation needs values for your design. The table explains each field, gives published values where a reviewed source states them, and says what to obtain from the supplier.
| Field | What it means and published values | Ask the supplier for |
|---|---|---|
| Laser Wavelength | Red or green beam; e.g. 635 nm red, 520 nm green. [1] [4] | nm. |
| Laser Class | Class I to IV by accessible emission. [3] | Class marked. |
| Alignment Accuracy | E.g. ±1.5 mm at 30 m self-levelling. [4] | mm/m. |
| Operating Temperature | E.g. −20 °C to +50 °C. [4] | °C. |
| Storage Temperature | Storage range. | °C. |
| Relative Humidity | Waterproof housing (TP-L6). [2] | % RH. |
| Ingress Protection | Waterproof cast aluminium housing (TP-L6); IPx8 (Piper). [2] [4] | IP code. |
| Supply Voltage | Battery pack. [2] | V DC. |
| Power Consumption | 60 h battery life. [2] | W; h. |
| Weight | E.g. 2.0 kg. [4] | kg. |
| Dimensions (L×W×H) | Fits tight inverts (TP-L6); 96 mm × 267 mm, fits a 100 mm pipe (Piper). [2] [4] | mm. |
| Material | Cast aluminium housing. [2] | Material. |
07
Paste it into your enquiry below or into an email to a maker, then replace every bracket.
Pipe: [diameters; materials] Grade: [range %; resolution] Run: [length m] Beam: [red; green; class] Alignment: [auto; manual; targets] Control: [app; remote] Power/housing: [hours; waterproof] Quantity: [units]
These companies list laser guidance system for pipe laying on their own websites.
Its website has a product page for laser guidance system for pipe laying.
Product scope checked 2026-10-12
Explore company information and manufacturing capabilities, then discuss the scope of your project with a relevant supplier.
It projects a red or green beam along the pipe axis so pipe can be set to the design alignment, grade and depth. [1]
Topcon lists 60 hours for the TP-L6, enough for a working week. [2]
Topcon's TP-L6GV, AV and G models scan the target edges and centre the beam automatically. [2]
US rules classify every laser product in Class I to IV by its accessible emission; check the class marked on the unit. [3]
One maker's data sheet states ±1.5 mm at 30 m, defined at 25 °C, with a grade range of −10% to +25% and a working range below 200 m. [4]
Sources checked 2026-10-12. Topcon's pipe laser page and TP-L6 brochure and US laser product rules (21 CFR 1040.10) are used to show what a pipe laser specification covers; values for your order must come from the supplier's datasheet.
Ask for use case, specification boundaries, supplier type, and RFQ preparation information for this product.
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