
RITMO DELTA’s precision-engineered butt welding machines represent the pinnacle of pipe fusion technology. The comprehensive range delivers unmatched performance for every application, from utilities to major infrastructure projects.
These machines are manually operated and often setup with an external datalogger or QA system which we can supply or tie in with the use of the PE Weld Bank system we also provide to the market.
This page covers some of the standard models we provide in NZ in the Delta Butt Fusion range, which are manual operation.
All machines come with 24 month factory warranty for your peace of mind.
For sizes 63mm up to 355mm we only stock the Easylife Automatic range of Butt Welders in NZ which is based on customer feedback and industry demands with councils and engineers to have semi-automatic operation. They are the machines we recommend for anyone new to the welding industry and preferred by most operators.
The video on the right hand side shows some of the functionality on these machines.
“As simple as pushing a button”, this is how to describe RITMO’S SMARTLocK system for inserts.
No tools are required to place our butt welder’s inserts, just push a button to lock and unlock them.
Simple and time saving.
RITMO SMARTLocK system is designed for ease of use and efficiency.
With SMARTLocK, installing and removing the inserts is effortless and no tools are needed! Just a gentle press on the locking button, and you’re ready. This is a true time-saver!
Another advantage? RITMO’s uses thin inserts that easily grip also short-elbows and different types of fittings making the installations a breeze.
SMARTLocK is compatible with models from 250 to 355mm.
SMARTLocK is a RITMO patent …when a detail makes all the difference!


This is a self-aligning machine, suitable for welding ducts for the transport of water, gas and other fluids under pressure, up to 500mm. The DELTA 500 was designed in accordance to the International correspondent standards (UNI 10565, ISO 12176-1).
ON REQUEST (ACCESSORIES)
| Materials | HDPE – PP – PB – PVDF |
| Working range | Ø 200 – 500 mm |
| Power supply | 230 V Single Phase 50/60 Hz |
| Total absorbed power | 7950 W (230 V) |
| Working temperature | 180° – 280° C |
| Outside temperature range | -10° – 40° C |
| Time to reach welding temperature | < 20 |
| Dimensions machine body | 1265 x 790 x 780 mm |
| Weight machine body | 230 Kg |
| Weight standard composition | 408 Kg |
The DELTA 630mm butt welder is a self-aligning machine, suitable for welding ducts for the transport of water, gas and other fluids under pressure, up to 630mm. The DELTA 630 was designed in accordance with the International correspondent standards (UNI 10565, ISO 12176-1).
ON REQUEST (ACCESSORIES)
| Materials | HDPE – PP – PB – PVDF |
| Working range | Ø 280 – 630 mm |
| Power supply | 230 V Single Phase 50/60 Hz |
| Total absorbed power | 12350 W |
| Working temperature | 180° – 280° C |
| Outside temperature range | -10° – 40° C |
| Time to reach welding temperature | < 20 |
| Dimensions machine body | 1550 x 1010 x 1000 mm |
| Weight machine body | 415 Kg |
| Weight standard composition | 708 Kg |
This is a self-aligning machine, suitable for welding ducts for the transport of water, gas and other fluids under pressure, up to 800mm. The DELTA 800 was designed in accordance with the International correspondent standards (UNI 10565, ISO 12176-1).
ON REQUEST (ACCESSORIES)
| Materials | HDPE, PP |
| Working range | Ø 500-710 mm |
| Power supply | 400 V 3F+N+PE 50/60 HZ |
| Total absorbed power | 16500 W |
| Working temperature | 180° – 280° C |
| Outside temperature range | -10° – 40° C |
| Time to reach welding temperature | < 45 minutes |
| Dimensions machine body | 2100 x 1350 x 1300 mm |
| Weight machine body | 821 Kg |
| Weight standard composition | 1260 Kg |
This is a self-aligning machine, suitable for welding ducts for the transport of water, gas and other fluids under pressure, up to Ø 1000mm. The DELTA 1000 was designed in accordance with the International correspondent standards (UNI 10565, ISO 12176-1).
ON REQUEST (ACCESSORIES)
| Materials | HDPE, PP |
| Working range | Ø 630 – 900 mm |
| Power supply | 400 V 3F+N+PE 50/60 HZ |
| Total absorbed power | 25000 W |
| Working temperature | 180° – 280° C |
| Outside temperature range | -10° – 40° C |
| Time to reach welding temperature | < 45 minutes |
| Dimensions machine body | 2386 x 1746 x 1711 mm |
| Dimensions gear case | 1000 x 580 x 680 mm |
| Weight machine body | 2090 Kg |
| Weight standard composition | 2942 Kg |