Mastrant Ropes, Guy wires and mounting hardware
Mastrant is a company from Czech Republic which focusses entirely on the area of mast guying with excellent ropes and a lot of specialized hardware. Since 2007 Martin PL5Y/OK1FUA and his team offer choice products in very high quality and reliability. WiMo has started to offer a selection of the Mastrant products sicne the end of 2017.
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Mastrant Guy Ropes
The correct rope is one of the most important parts when guying a tower. Mastrant supplies ropes which have ben specifically selected for mast guying. Important features are good UV resistance, a high tensile strength, low stretching and a first-rate weather resiliance. The Mastrant ropes are made from Polyester and Dyneema, which have been designed for high and permanent loads.
WiMo offers two different rope types, which are differentiated by their elongation percentage. The table below should help you in selecting the right rope and accessories for various applications - from hanging a wire dipole up to securely guying a large tower. The rope type Mastrant-P is made from Polyester, is offered from 2 to 6mm and has a slightly higher elongation under load. This rope is very well suited for wire antennas, light masts etc. The rope type Mastrant-M is made from Dyneema, has a very low stretching under load and is available in diameters from 1 to 8mm. Depending on the diameter nearly all applications in amateur radio can be covered with these ropes.
- Structure: braided sheathing with cabled core
- Core: Polyester with parallel twisted layers
- Sheath: 12 or 16 (depending on diameter)
- Elongation: max. ca. 2.4%
- Temperature range: -110°C – +120°C
- Structure: double braided Polyester sheath with Dyneema core
- Core: 100% braided Dyneema DM20
- Inner sheath (only for ropes from 6mm Ø): several Polyester layers
- Outher sheath: 12, 16, 24 or 40 Polyester layers (depending on diameter)
- Temperature range: -110°C – +90°C
|Wire antennas||Vertical antenna||Mast Ø 25-100mm||Lattice Mast||Breacking load
|Supported weight load
|Suggested size of connecting elements|
|Application||Wire dipoles||Longwire antennas,
|Up to 20m,Ø 25-75mm||Up to 40m,Ø 50-100mm||Up to 10m, with 3 el Beam or long yagi||Up to 20m, 5 el Yagi for 20m||Up to 20m, 7el Three band beam||Up to 60m, triple stacked 5 el Yagi 20m||Carabine Hook||Shackle||Chain Link||Rope tensioner|
|P-2 (Ø 2mm)||100||30||5||5||5||6|
|P-3 (Ø 3mm)||200||30||5||5||5||6|
|P-4 (Ø 4mm)||400||120||6||5||5||6|
|P-5 (Ø 5mm)||500||150||6||5||5||6|
|P-6 (Ø 6mm)||850||255||6||6||6||6|
|M-1 (Ø 1mm)||100||30||5||5||5||6|
|M-2 (Ø 2mm)||250||75||5||5||5||6|
|M-3 (Ø 3mm)||390||170||6||5||5||6|
|M-4 (Ø 4mm)||900||270||7||5||5||6|
|M-5 (Ø 5mm)||1150||345||8||6||6||8|
|M-6 (Ø 6mm)||1850||555||10||7||7||10|
|M-8 (Ø 8mm)||2600||780||HD||8||8||12|
 Levels: Number of guying points in elevation. Other constraints: wind speed max. 180km/h, Distance between attachment point on the mast and on the ground larger than 70% of mast height.
Mastrant Rope Thimbles, Shackles and Clamps
The correct attachment of the end of the rope is highly important for the longevity and security of the guying. It must be ensured that the rope can not be frayed by movement and wear on sharp edges. In most cases the rope is held in a thimble and fixed by one or multiple screw clamps, most ideally with a double clamp. In addition to that the very end of the rope should be protected against fraying (fan out) by using another clamp or a cable tie or adhesive tape. The thimble can then be hooked up to a chain link or a carabine. When the attachment point itself is smooth and has no risk of fraying the rope then the rope can be attached directly to the lug without using a thimble. But please note that the breaking load of a rope is drastically reduced when tying a knot, depending on the knot by up to 30 or even 50%! So the use of a thimble is helping under thsi aspec tas well. Although the breaking load is reduced also when using a thimble, it is not reduced as much as when using a knot.
The mounting hardware by Mastrant is in most cases made of stainless steel type A4, i.e. a steel type which is also resistant against acid and seawater. This is not only beneficial on board a ship, but also on land, for example close to the sea. But even anywhere else exhaust fumes from chimney can lead to acidic precipitation which can harm metals. Please select the size of the mounting hardware in accordance to the rope thickness.
|23330.2||Rope tensioner Single 1-3mm||1.60 €||Add to shopping cart||In stock, shipped in 1 to 2 days. ⓘ|
|23330.3||Rope tensioner Single 2-4mm||2.58 €||Add to shopping cart||In stock, shipped in 1 to 2 days. ⓘ|
|23330.4||Rope tensioner Single 3-5mm||6.05 €||Add to shopping cart||In stock, shipped in 1 to 2 days. ⓘ|
|23330.6||Rope tensioner Single 4-8mm||14.79 €||Add to shopping cart||In stock, shipped in 1 to 2 days. ⓘ|
|23335.4||Rope tensioner Multiple 3-4mm||28.60 €||Add to shopping cart||In stock, shipped in 1 to 2 days. ⓘ|
|23335.6||Rope tensioner Multiple 4-6mm||34.99 €||Add to shopping cart||In stock, shipped in 1 to 2 days. ⓘ|
|23336||Rope tensioner 6-11mm black||24.40 €||Add to shopping cart||New||In stock, shipped in 1 to 2 days. ⓘ|
|Info freight charges|
Mastrant - Rope Pulleys and Guy Fixation
When working on the mast guying, often the question for other mounting options arise, for example how to install wire antennas etc. Mastrant offers a large range of options for installation a fixation of such material.
Rope pulleys are useful to easily raise and lower wire antennas. This makes it very easy to experiment and adjust the antenna to it's mounting point for best performance. Or you can build a system with a weight to keep the tension of a wire antenna over a tree.
'With Swirl' means that this pulley has a rotating lug at the top. This helps to prevent twisting of the guy wire.
|23350.5||Pulley, Nylon 5 mm, galvanized metal body||1.35 €||Add to shopping cart||In stock, shipped in 1 to 2 days. ⓘ|
|23350.6||Pulley, Nylon 6 mm, galvanized metal body||1.54 €||Add to shopping cart||In stock, shipped in 1 to 2 days. ⓘ|
|23350.8||Pulley, Nylon 8 mm, galvanized metal body||2.69 €||Add to shopping cart||In stock, shipped in 1 to 2 days. ⓘ|
|23350.10||Pulley, Nylon 10 mm, galvanized metal body||4.23 €||Add to shopping cart||In stock, shipped in 1 to 2 days. ⓘ|
|Info freight charges|
|23355.6||Pulley, Plastic, up to 6mm, body stainless steel A4, with shackle||4.80 €||Add to shopping cart||In stock, shipped in 1 to 2 days. ⓘ|
|23355.9||Pulley, Edelstahl, up to 9mm, body stainless steel A4, with Swirl||6.90 €||Add to shopping cart||In stock, shipped in 1 to 2 days. ⓘ|
|23355.10||Pulley, Edelstahl, up to 10mm, body stainless steel A4, with Swirl||7.90 €||Add to shopping cart||In stock, shipped in 1 to 2 days. ⓘ|
|23355.14||Pulley, Edelstahl, up to 14mm, body stainless steel A4, with Swirl||11.50 €||Add to shopping cart||In stock, shipped in 1 to 2 days. ⓘ|
|Info freight charges|
|23305||3-way Guying Bracket 30-55 mm, galvanized||8.50 €||Add to shopping cart||In stock, shipped in 1 to 2 days. ⓘ|
|23306||4-way Guying Bracket 45-75 mm, galvanized||10.00 €||Add to shopping cart||In stock, shipped in 1 to 2 days. ⓘ|
|23307.102||3-way Guying Bracket 32-102mm, stainless steel||18.60 €||Add to shopping cart||In stock, shipped in 1 to 2 days. ⓘ|
|23308.53||4-way Guying Bracket 15-53mm, stainless steel||Delivery delay unknown, no data.|
|23308.85||4-way Guying Bracket 32-85mm, stainless steel||23.60 €||Add to shopping cart||In stock, shipped in 1 to 2 days. ⓘ|
|23308.112||4-way Guying Bracket 32-127mm, stainless steel||Delivery delay unknown, no data.|
|Info freight charges|
Mastrant - Individual Work Safety Tools
The universal safety harness LX2 is worn around chest and pelvis and allows a safe working position even in large heights. The padded lap belt offers a high wearing comfort even for long working hours. Heave hook on front and rear, adjustable shoulder and leg belts. Suitable for equivalent garment sizes M to XL, shipped without stay rope or fall damper. Conforms to safety standards EN 361, EN 358, CE0082.
The stay rope PROT3 is attached to a safety harness and is used to attach oneself to the mast in a safe working position. Very large carabines allow an easy and fast hooking of the rope, even when wearing gloves. The length can be easily adjusted with one hand. Rope strength 14mm, max. length 2m. Conform to safety standard EN 358.
The fall damper ABM 2L offer two carabines for hooking to a mast, plus an absorption element. In case of a fall the asbsorption element (shock absorber) stretches and avoids a sharp jolt. Length 1,8m. Conforms to safety standard EN 355.
|23400||Safety Harness LX2||59.00 €||Add to shopping cart||In stock, shipped in 1 to 2 days. ⓘ|
|23410||Stay Rope PROT 3 - 2m||59.00 €||Add to shopping cart||In stock, shipped in 1 to 2 days. ⓘ|
|23420||Fall damper/shock absorber ABM 2L||99.00 €||Add to shopping cart||In stock, shipped in 1 to 2 days. ⓘ|
|Info freight charges|