Orbitalum PS 4.5 Plus Portable Pipe Saw, Electric or Battery
Overview
The Orbitalum PS 4.5 Plus is a portable pipe saw for thin-walled tubes and pipe bends from 6 to 120 mm outside diameter, available as a corded electric machine and as a battery-powered version. Orbitalum Tools sums up its appeal as burr-free, right-angled and deformation-free cutting, low weight and ease of use. At 23.6 kg for the electric model and 22 kg for the battery model, the manufacturer describes the Orbitalum PS 4.5 Plus as one of the lightest machines in its application area, light enough for one person to carry and operate on a construction site.
Seven Star LLC supplies the Orbitalum PS 4.5 Plus to piping contractors, mechanical installers and maintenance departments in Oman and the GCC, with engineering support in Muscat. We provide the official product datasheet, which covers both the electric and the battery versions, and help customers choose saw blades and mounting accessories for their work.
Operating Principle
Orbitalum pipe saws use what the manufacturer calls the planetary cutting process, or flat cutting principle. The pipe is clamped and stays stationary, while the saw blade plunges into the cut and is then guided orbitally around the pipe. Orbitalum points out two advantages. First, a large pipe diameter can be cut with a small saw blade without heating the pipe, so stainless steel is not discoloured or hardened at the cut. Second, safety improves because the pipe stays still and only the tool rotates.
On the Orbitalum PS 4.5 Plus, infeed and sawing happen in a single operation, and the cut needs no reworking because it is burr-free and right-angled. The self-centering vice uses integrated reversible clamping jaws that grip at several points, preventing deformation of thin walls. A second saw blade clamping point allows pipe bends to be cut, and an integrated line laser marks the cut-off point. The cold machining process also helps prevent corrosion at the cut face, which matters for stainless lines carrying water or process fluids.
Engineering Design of the Orbitalum PS 4.5 Plus
The rotating body and the self-centering vice are made of high-quality aluminium alloys, and robust sliding elements support a long service life. The electric version uses an air-cooled, speed-controlled single-phase AC motor with Vario-Tacho-Constamatic (VTC) electronics, a setting wheel to preselect speed from 30 to 182 rpm, a restart interlock, overload protection, cut-off carbon brushes and a carbon wear indicator; the drive can be rotated and removed. The electric machine measures 480 × 230 × 600 mm and is offered in 230 V, 110 V and 120 V, 50/60 Hz.
The battery version of the Orbitalum PS 4.5 Plus has a shorter overall length (480 × 420 × 450 mm), a brushless high-performance motor with two gears (0 to 32 rpm and 0 to 118 rpm), lithium-ion battery packs with capacity indicator, individual cell monitoring and low self-discharge, and electronic overload protection with temperature monitoring. It ships with two exchangeable batteries and a charger in 230 V or 115 V. Both versions are rated 1,100 W and protection class II and come in a hard-sided case with compartments for accessories.
Key Features
The main benefits of the Orbitalum PS 4.5 Plus listed by the manufacturer are:
- Cuts pipes from 6 to 120 mm outside diameter and tube elbows from 30 to 120 mm.
- Wall thickness range of 0.6 to 3.0 mm for thin-walled stainless and other pipes.
- Planetary cutting with a stationary pipe and orbiting blade, giving a cold, burr-free, right-angled cut.
- Integrated reversible clamping jaws for deformation-free multi-point clamping.
- Integrated line laser, already mounted on delivery, for marking the cut-off point.
- Low machine weight of 23.6 kg (electric) or 22 kg (battery) for flexible site use.
- Saw blade and bevel cutter combinations available for metal press-fitting pipes.
- Quick mounting on a workbench plate or on an optional aluminium tripod.
Industrial Applications
The Orbitalum PS 4.5 Plus is designed for cutting thin-walled pipes and pipe bends, the everyday work of stainless process piping, sanitary installations and press-fit systems. In Oman and the GCC it is used on water and wastewater projects, desalination plant utility piping, district cooling and building services in hotels, hospitals and commercial towers, and on food, beverage and pharmaceutical production lines. The battery version is particularly practical for site work and shutdowns where a power outlet is not close to the cutting point.
For press-fitting systems, Orbitalum offers saw blade and bevel cutter combinations (codes 790 044 046 and 790 044 047) for walls of 1 to 2 mm, cutting and chamfering in one pass. Seven Star LLC supplies the Orbitalum PS 4.5 Plus, its Performance saw blades and the tripod from Muscat. Customers building out a fabrication shop also look at the Lincoln Electric Power Wave S500, the ESAB Rebel EMP 285ic and the LongTeng EL8; further end-prep tools are in our pipe cutting and bevelling machines category.
Technical Specifications
The Orbitalum PS 4.5 Plus data below is taken from the manufacturer datasheet:
| Parameter | Specification |
|---|---|
| Model | Orbitalum PS 4.5 Plus portable pipe saw (electric / battery) |
| Article codes, electric | 790 048 001 (230 V EU); 790 048 002 (110 V EU); 790 048 003 (120 V US) |
| Article codes, battery | 790 048 004 (230 V EU charger); 790 048 005 (115 V US charger) |
| Pipe outside diameter | 6 – 120 mm (0.236 – 4.724 in) |
| Tube elbow outside diameter | 30 – 120 mm (1.181 – 4.724 in) |
| Wall thickness | 0.6 – 3.0 mm (0.024 – 0.118 in) |
| Dimensions | Electric 480 × 230 × 600 mm; battery 480 × 420 × 450 mm |
| Power | 1,100 W (1.5 hp) |
| Speed | Electric 30 – 182 rpm; battery 1st gear 0 – 32 rpm, 2nd gear 0 – 118 rpm |
| Machine weight | Electric 23.6 kg; battery 22.0 kg |
| Protection class | II |
| Vibration level | below 2.5 m/s² |
| Sound pressure level | approx. 78 dB(A) |
| Recommended saw blades (63 mm) | Performance 790 048 072 for 1.0 – 3.0 mm walls; 790 041 036 for 0.6 – 1.2 mm walls |
| Scope of delivery | Saw, hardened cast aluminium clamping jaws, hard-sided case, line laser, saw blade 790 048 072, tool bag, GF TOP lubricant, operating instructions; battery version adds two batteries and charger |
Accessories
Orbitalum offers a quick-mounting plate with screw clamps (code 790 048 334, 2.6 kg) for fixing the saw to a workbench without drilling, and an aluminium tripod (code 790 048 390, 7.4 kg) that suits both the Orbitalum PS 4.5 Plus and the GFX 3.0 and can be stored in the PS transport case.
Call To Action
To request a quotation for the Orbitalum PS 4.5 Plus, tell Seven Star LLC whether you need the electric or battery version, your pipe sizes and wall thicknesses, voltage and delivery point in Oman or the GCC. Our Muscat team will confirm blades and accessories, share the official datasheet and arrange supply and support.
- Datasheet Orbitalum PS 4.5 Plus datasheet (electric and battery versions) Download

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