UMIX
System rod tendons

Product description
The UMIX PFEIFER tension rod system is used in a wide range of structures as bracing, ties, hangers, or prestressing elements, designed to transfer tensile forces. Thanks to its high fatigue strength and effective corrosion protection, the UMIX system is also perfectly suited for demanding bridge structures.
Product types / design load capacities
The UMIX system offers a wide range of 22 tension rod sizes, from M8 to M120, with a design tensile capacity ranging from 19 kN to 5249 kN.
The standard UMIX tension rod consists of a rod threaded on both ends and equipped with fork ends, locking nuts, and pins. Upon request, variants with spade ends or sets of hex nuts and washers are also available, allowing for optimal configuration to meet specific structural requirements.
Depending on the project requirements, tension rods rods can be complemented with tensioners (adapters, couplers), intersection couplers for cross bracing, and connectors.
Rods in sizes from M8 to M14 are available in lengths up to 6 meters, while rods in sizes from M16 to M120 are available in lengths up to 12 meters.
Material / Execution
The standard rods used in UMIX tension rods in the galvanized version are made of steel with a yield strength of 530 MPa. Other steel grades are available upon request. All components of the UMIX system, including the threaded rods, are hot-dip galvanized in accordance with ISO 1461.

Overview of the UMIX tension rod system – Grade S530
Sizes and Technical Parameters
UMIX Size | 008 | 010 | 012 | 014 | 016 | 020 | 024 | 027 | 030 | 036 | 042 | 048 | 052 | 056 | 060 | 064 | 070 | 080 | 090 | 100 | 110 | 120 |
Design tensile resistance of UMIX tension rod (acc. to EC3) [kN]: | 19 | 30 | 43 | 59 | 80 | 125 | 180 | 235 | 286 | 417 | 573 | 753 | 898 | 1037 | 1207 | 1367 | 1663 | 2220 | 2857 | 3574 | 4371 | 5249 |
Charakteristic tensile resistance of UMIX tension rod [kN] | 26 | 41 | 60 | 82 | 111 | 174 | 250 | 326 | 398 | 580 | 795 | 1045 | 1247 | 1441 | 1676 | 1899 | 2309 | 3083 | 3967 | 4964 | 6071 | 7291 |
Yeld Strength of bars [Mpa] | 530 | 530 | 530 | 530 | 530 | 530 | 530 | 530 | 530 | 530 | 530 | 530 | 530 | 530 | 530 | 530 | 530 | 530 | 530 | 530 | 530 | 530 |
Tensile Strength of bars [Mpa] | 710 | 710 | 710 | 710 | 710 | 710 | 710 | 710 | 710 | 710 | 710 | 710 | 710 | 710 | 710 | 710 | 710 | 710 | 710 | 710 | 710 | 710 |
Cross-sectional area (bar) [mm2] | 38 | 64 | 87 | 123 | 165 | 254 | 380 | 491 | 616 | 855 | 1195 | 1590 | 1886 | 2124 | 2463 | 2827 | 3421 | 4536 | 5809 | 7238 | 8825 | 10568 |
Cross-sectional area (thread) [mm2] | 37 | 58 | 84 | 115 | 157 | 245 | 352 | 459 | 560 | 816 | 1120 | 1472 | 1757 | 2029 | 2361 | 2675 | 3253 | 4342 | 5588 | 6991 | 8551 | 10268 |
Tread size | M8 | M10 | M12 | M14 | M16 | M20 | M24 | M27 | M30 | M36 | M42 | M48 | M52 | M56 | M60 | M64 | M70 | M80 | M90 | M100 | M110 | M120 |
Bar diameter [mm] | 7,0 | 9,0 | 10,5 | 12,5 | 14,5 | 18 | 22 | 25 | 28 | 33 | 39 | 45 | 49 | 52 | 56 | 60 | 66 | 76 | 86 | 96 | 106 | 116 |
Available length of bars [mm] | 6 | 6 | 6 | 6 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 |
Connection plate dimensions suitable for use with the UMIX tension rod system
Rozmiar UMIX | 008 | 010 | 012 | 014 | 016 | 020 | 024 | 027 | 030 | 036 | 042 | 048 | 052 | 056 | 060 | 064 | 070 | 080 | 090 | 100 | 110 | 120 |
Minimalny gatunek stali blachy kotwiącej | S355 | S355 | S355 | S355 | S355 | S355 | S355 | S355 | S355 | S355 | S355 | S355 | S355 | S355 | S355 | S355 | S355 | S355 | S355 | S355 | S355 | S355 |
Grubość blachy kotwiącej t GL [mm] | 8 | 10 | 12 | 15 | 15 | 20 | 20 | 20 | 25 | 25 | 30 | 35 | 40 | 40 | 45 | 45 | 50 | 60 | 70 | 75 | 85 | 95 |
Minimalna odległość otworu od krawędzi fmin [mm] | 14,5 | 17,5 | 21,5 | 26 | 29 | 35 | 42 | 48 | 53 | 62 | 72 | 82 | 88 | 95 | 100 | 107 | 117 | 133 | 152 | 174 | 193 | 210 |
Minimalna szerokość c min [mm] | 25 | 31 | 38 | 45 | 53 | 66 | 78 | 88 | 98 | 115 | 135 | 153 | 163 | 175 | 186 | 199 | 217 | 254 | 288 | 321 | 371 | 394 |
Średnica otworu wierconego dL [mm] | 9 | 11 | 13,5 | 16 | 18 | 22 | 26 | 30 | 33 | 39 | 45 | 51 | 55 | 59 | 63 | 67 | 73 | 83 | 95 | 109 | 121 | 132 |




UMIX PFEIFER – versatile and reliable
- Modular system design: a wide range of available components – end fittings, turnbuckles, intersection couplers, and connectors – allows for optimal system configuration tailored to specific project requirements
- Delivered as a complete prefabricated product ready for installation – ensuring faster and easier assembly.
- Wide range of adjustment and the possibility of precise adaptation of tension rod lengths.
- Effective corrosion protection – all system components are hot-dip galvanized in accordance with ISO 1461.
- High fatigue performance proven by testing.
Variants / Configuration




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