https://www.volta-macchine.com/
Volta Macchine is an Italian manufacturer of machinery and equipment for cable laying and overhead-line construction. For more than 30 years, the company from Bolzano has been developing powerful, ISO-certified solutions for laying underground cables and building overhead lines. Supplying energy utilities and telecommunications companies throughout Europe, Volta Macchine stands for rugged technology, high pulling forces and durable quality in professional line construction.
At SEMPERDEAL you can obtain Volta Macchine products conveniently from a single source – with expert advice and fast delivery.
Frequently asked questions
General0
Who are the products intended for?
Repair & Service0
Do you offer calibration?
As an official service point, we offer calibration for cable locators, leak detection and measuring devices. For a large proportion of the devices sold on the market, we issue corresponding certificates. You'll find more information on our Service & Repairs page and at service@cft.at.
Can I get a loan device during the repair?
Who do I contact for technical problems?
Do you offer repairs?
Yes, we offer repair services for most of the appliances in our range. Please submit a repair request directly via our repair request form or contact us at kontakt@semperdeal.com.
How much does a repair cost?
Do you offer an on-site service?
How long does a repair take?
Datasheets & Downloads0
Is a user manual included?
Where can I find software or apps for the devices?
Where can I find technical data sheets?
Training Courses0
Can I book training for a device I already own?
Technical Consulting12
Which device is right for my application?
Which safety factors apply to Volta slings and lifting accessories?Volta Macchine
The following safety factors apply to Volta lifting products:
- Wire rope slings: 5 : 1
- Chain slings: 4 : 1
- Lifting accessories such as master links, shackles and hooks: 5 : 1
The working load limit (W.L.L.) is given in daN; 1 daN equals 10 N, i.e. roughly 1 kg.
Which Volta anti-twist swivel matches which rope and breaking load?Volta Macchine
Each anti-twist swivel is assigned a rope diameter and a breaking load. The values given are breaking loads.
| Swivel | Rope ø | Breaking load |
|---|---|---|
| JZ-D00850 (compensating joint, ø 12 mm) | 4 mm | 850 daN |
| JZ-D012000 (compensating joint, ø 18 mm) | 9 mm | 1,200 daN |
| JZ-D06000 (compensating joint, ø 32 mm) | 13 mm | 8,000 daN |
| JZ-D12000 (compensating joint, ø 45 mm) | 19 mm | 18,000 daN |
| JZ-D90000 (compensating joint, ø 80 mm) | 35 mm | 90,000 daN |
| X96059160 (ball joint, ø 20 mm) | 6 mm | 2,500 daN |
| M250B0000 (ball joint, ø 45 mm) | 14 mm | 18,000 daN |
What are the different Volta cable rollers and cable guiding devices used for?Volta Macchine
The cable laying accessories are intended for these locations:
- Straight runs: cable laying rollers for straight-line laying, depending on type for cables up to ø 60 to 260 mm.
- Bends: cable corner rollers, depending on type for cables up to ø 100 to 280 mm.
- Manholes: manhole entry roller bends for cables up to ø 160 mm, cable rollers and cable protection bends for the manhole edge, and cable and rope entry devices for cables up to ø 100 mm.
- Cable conduits: cable guide units with protective rollers.
- Duct entry: entry guides and cable entry devices guide and protect the cable or pulling rope; the versions with clamping device are fixed in the duct.
- Run-off from the drum: cable guiding and run-off roller stands for cables and ducts.
Which material of a Volta cable pulling grip suits which application?Volta Macchine
- Galvanised steel: the standard material, suitable for all types of installation.
- Stainless steel: for use in the petrochemical industry, the food industry and under water.
- Nylon, Kevlar® or Dyneema®: where non-conductive or antimagnetic grips are required; they are light and in some cases reach high breaking loads.
Steel grips are braided from strands of 7, 19, 49 or 133 individual wires; the strands used depend on the gripping properties, the required breaking load and the intended application.
What is a Volta anti-twist swivel used for and what is a rigid rope connector used for?Volta Macchine
- Anti-twist swivel with compensating joint: it is fitted between the winch rope and the cable pulling grip and compensates the twisting that occurs during pulling. It is also available with a ball joint.
- Rigid rope connector: connects the winch rope with a pulling rope made of synthetic material or galvanised braided rope. It is designed to run over the grooved bullwheels of capstan cable winches.
Which thread do the start and end sleeves of Volta fibreglass rods have?Volta Macchine
The thread depends on the rod diameter:
| Rod ø | System | Thread | Start/end sleeve |
|---|---|---|---|
| 3 mm | GIRAVOLTA | M5 | GVGR |
| 4.5 mm | VOLTAFOX | M5 | GVFOR |
| 6 mm | VOLTASIX | M6 | GVSR |
| 7.5 mm | VOLTAFIX | M12 | GVFIR |
| 9 mm | VOLTASTRONG | M12 | GVSTR |
| 11 mm | VOLTAPOWER | M12 | GVPR |
| 13 mm | VOLTAKONG | M12 | GVKOR |
| 15 mm | VOLTAKING | M12 | GVKIR |
The accessories for each rod have the same thread, for VOLTASIX for example starting heads, a connecting sleeve with swivel and a cable pulling grip, each with M6.
How do Volta cable pulling grips for civil installations differ from those for industrial installations?Volta Macchine
The two ranges differ in the connection and in the cable diameter:
- Civil installations: Only this range includes grips with an M4, M5 or M6 threaded connection, for example with eye and M5 pulling head, for cables from ø 4 to 31 mm, plus non-conductive nylon grips up to ø 40 mm. The threaded grips are among the accessories for fish tapes and fibreglass rods with the same sleeve thread, e.g. M5 for GIRAVOLTA and VOLTAFOX.
- Industrial installations: grips with an eye or a thimble, e.g. JST112 with one thimble for cables from ø 10 to 150 mm. For pulling with the winch rope, an anti-twist swivel is fitted between rope and grip to compensate the twisting that occurs during pulling.
All Volta cable pulling grips are braided by hand.
How long can a Volta cable pulling grip be used?Volta Macchine
A cable pulling grip is not a disposable item, but it has a limited service life. This depends strongly on the field of application and the working cycles, especially under extreme conditions such as stringing overhead conductors, installing underground high-voltage cables or laying submarine cables.
Check every grip carefully before its next use. Damaged or even slightly frayed grips must be replaced.
Which duct diameters and pulling forces are Volta fish tapes and fibreglass rods designed for?Volta Macchine
For each fish tape, the table shows the suitable duct diameter, the breaking load and the working pulling force with start/end sleeve. The working pulling force is well below the breaking load.
| Fish tape or rod | Duct ø | Breaking load | Working pulling force |
|---|---|---|---|
| GIRAVOLTA ø 3 mm | 8–32 mm | 400 kg | 110 kg |
| VOLTAFOX ø 4.5 mm | 10–60 mm | 1,100 kg | 170 kg |
| VORTICVOLTA ø 4.0 / 4.5 / 5.2 mm | 10–32 mm | 220 / 250 / 300 kg | 115 / 130 / 140 kg |
| VOLTANYL nylon ø 3 / 4 mm | 8–16 / 8–25 mm | 200 / 280 kg | 110 / 120 kg |
| VOLTANYL PERLON® ø 4 mm | 8–25 mm | 450 kg | 130 kg |
| VOLTASTEEL SPIRAL ø 3 / 4 mm | 10–25 / 12–32 mm | 350 / 900 kg | 115 kg |
| VOLTASTEEL WIRE COVERED ø 4 / 5 mm | 10–32 / 12–32 mm | 580 / 640 kg | 130 kg |
| VOLTASTEEL FLAT COVERED ø 4 / 6 mm | 10–60 / 12–80 mm | 290 / 800 kg | 150 / 360 kg |
| VOLTASIX ø 6 mm | 20–80 mm | 2,000 kg | 230 kg |
| VOLTAFIX ø 7.5 mm | 50–100 mm | 3,000 kg | 290 kg |
| VOLTASTRONG ø 9 mm | 50–150 mm | 4,500 kg | 340 kg |
| VOLTAPOWER ø 11 mm | 50–200 mm | 7,500 kg | 500 kg |
| VOLTAKONG / VOLTAKING ø 13 / 15 mm | 100–250 mm | 10,000 / 15,000 kg | 650 kg |
May the Volta quick-grip hook for cable drums be used to unwind the cable?Volta Macchine
No. The quick-grip hook is intended for lifting cable drums in a horizontal position via the central drum bore; it is not suitable for unwinding the cable or rope.
The three versions are rated for a maximum of 1,000 kg (M46200000), 2,000 kg (M46300000) and 5,000 kg (M46400000).
What is the difference between VOLTANYL fish tapes with crimped and with interchangeable end fittings?Volta Macchine
The VOLTANYL fish tapes ø 4 mm are available in three versions, each with a spring guide head with eye and a pulling head with eye:
- TP and NP: end fittings crimped on directly.
- TI and NI: interchangeable end fittings with M4 thread.
- TF and NF: interchangeable M4 end fittings, with the thread directly on the rod.
For ø 4 mm, TP, TI and TF are made of nylon (RAL 9002), NP, NI and NF of PERLON® (RAL 9017). The nylon tape has a breaking load of 280 kg and a working pulling force of 120 kg, the PERLON® tape 450 kg and 130 kg. VOLTANYL ø 3 mm is available with crimped or with interchangeable M4 end fittings.
What should be observed when selecting and fitting a Volta cable pulling grip?Volta Macchine
- Select the grip by cable diameter, cable type (underground cable, overhead line, submarine cable) and type of installation (static or dynamic). Every Volta grip is embossed with its diameter range and breaking load.
- Always insert the cable over the entire working length of the grip; only then does the mesh achieve full grip on the cable sheath.
- Place laterally open grips around the cable and lace them with the two binding wires supplied, starting at the top and crossing through the mesh, evenly tight along the whole length, then knot the ends.
- The edges must neither gap nor overlap; either means that the wrong diameter was chosen.
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