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Bending die for CBC UNI 42, 60, 63, 70/C, 76 & 89

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Tooling for CBC UNI Pipe Benders

Bending Formers

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UNI 42 – 60 – 63 – 70/C – 76 – 89



CBC bending formers for the UNI 42 to UNI 89Aluminium formers type A (mm) for UNI 42, 60, 63 and 70/CAluminium formers type B (inch, WHT) for UNI 42, 60, 63 and 70/CCast iron formers type C (mm) for UNI 42 to 89Cast iron formers type E (inch, WHT) for UNI 42 to 89Cast iron formers type L for gas pipes (UNI 42 to 89)Matching counterformers, rings and machinesManufacturer information

CBC bending formers for the UNI 42 to UNI 89

CBC supplies formers for its UNI pipe benders, which are complete with a ring. Bending is done without a mandrel. The aluminum formers of type A (millimeters) and type B (inches, WHT) are designed for hard and annealed copper, aluminum, annealed brass, and steel conduit for electricians. They are used with a counterformer only. They fit UNI 42, UNI 60, UNI 63, and UNI 70/C.

Formers made of spheroidal graphite iron — types C (mm), E (inch, WHT), and L for gas pipes — bend hard brass, steel, stainless steel, bonderized steel, and titanium tubes. They fit UNI 42, 60, 63, 70/C, 76, and 89. Type C also fits UNI 60 COMBI-CAL. Thin-walled pipes are bent with a counterformer (wall 1–2 mm, from Ø 32 mm and 1″1/4 up to 2.5 mm), and pipes with a wall of 2.5 mm or more are bent with counter rollers.

The standard bending radius is three or four times the pipe diameter (3D or 4D). CBC makes small formers with a diameter of 6 and 8 mm and a radius of 30 mm. The gas pipe formers have their own radius per size. The tables below list the code and radius of each former.

For pipes from Ø 45 mm, 1 3/4″ and 1 1/2″ GAS, CBC produces cast iron formers in separate versions for each machine group. These are listed with the large bending formers, along with the formers for the UNI 120, which CBC produces upon request. For stainless steel pipes over 33 mm and other pipes over 42 mm, type C, E, and L formers are used with the reinforcement tie rod on the UNI 60 and UNI 70/C. CBC also manufactures formers with a hook (type G) with radii starting at R36 and formers (type H) for steel and stainless steel hydraulic pipes with a wall thickness of at least 3 mm and a radius of approximately 2D. Special formers are available upon request.

Technical Data

Materialaluminium (types A, B), spheroidal graphite iron (types C, E, L)
DiametersØ 6–63 mm, 1/4″–2″3/8, 1/4–1″1/4 GAS
Bending radius3D or 4D; Ø 6 and 8 mm: R 30 mm; GAS: see table
Types A, B fitUNI 42, 60, 63, 70/C
Types C, E, L fitUNI 42, 60, 63, 70/C, 76, 89; type C also UNI 60 COMBI-CAL
Suppliedcomplete with ring

Aluminium formers type A (mm) for UNI 42, 60, 63 and 70/C

VersionArticle no.Radius
Ø 6 mm · R 3000063830 mm / 1.18 in
Ø 8 mm · R 3000063930 mm / 1.18 in
Ø 10 mm · 3D00048230 mm / 1.18 in
Ø 10 mm · 4D00048340 mm / 1.57 in
Ø 12 mm · 3D00031536 mm / 1.42 in
Ø 12 mm · 4D00031648 mm / 1.89 in
Ø 14 mm · 3D00031742 mm / 1.65 in
Ø 14 mm · 4D00031856 mm / 2.2 in
Ø 15 mm · 3D00025845 mm / 1.77 in
Ø 15 mm · 4D00024760 mm / 2.36 in
Ø 16 mm · 3D00023948 mm / 1.89 in
Ø 16 mm · 4D00018164 mm / 2.52 in
Ø 17 mm · 3D00032451 mm / 2.01 in
Ø 17 mm · 4D00032568 mm / 2.68 in
Ø 18 mm · 3D00024654 mm / 2.13 in
Ø 18 mm · 4D00024872 mm / 2.83 in
Ø 19 mm · 3D00032257 mm / 2.24 in
Ø 19 mm · 4D00032376 mm / 2.99 in
Ø 20 mm · 3D00019860 mm / 2.36 in
Ø 20 mm · 4D00025680 mm / 3.15 in
Ø 22 mm · 3D00024066 mm / 2.6 in
Ø 22 mm · 4D00017088 mm / 3.46 in
Ø 24 mm · 3D00032872 mm / 2.83 in
Ø 24 mm · 4D00025596 mm / 3.78 in
Ø 25 mm · 3D00024175 mm / 2.95 in
Ø 25 mm · 4D000169100 mm / 3.94 in
Ø 26 mm · 3D00024278 mm / 3.07 in
Ø 26 mm · 4D000257104 mm / 4.09 in
Ø 28 mm · 3D00025284 mm / 3.31 in
Ø 28 mm · 4D000183112 mm / 4.41 in
Ø 30 mm · 3D00019590 mm / 3.54 in
Ø 30 mm · 4D000253120 mm / 4.72 in
Ø 32 mm · 3D00024396 mm / 3.78 in
Ø 32 mm · 4D000184128 mm / 5.04 in
Ø 32 mm multilayer · 4D000184.M128 mm / 5.04 in
Ø 34 mm · 3D000329102 mm / 4.02 in
Ø 34 mm · 4D000330136 mm / 5.35 in
Ø 35 mm · 3D000244105 mm / 4.13 in
Ø 35 mm · 4D000249140 mm / 5.51 in
Ø 37 mm · 3D000320111 mm / 4.37 in
Ø 37 mm · 4D000321148 mm / 5.83 in
Ø 38 mm · 3D000245114 mm / 4.49 in
Ø 38 mm · 4D000185152 mm / 5.98 in
Ø 40 mm · 3D000196120 mm / 4.72 in
Ø 40 mm · 4D000254160 mm / 6.3 in
Ø 40 mm multilayer · 4D000254.M160 mm / 6.3 in
Ø 42 mm · 3D000251126 mm / 4.96 in
Ø 42 mm · 4D000250168 mm / 6.61 in
Ø 45 mm · 4D000197180 mm / 7.09 in
Ø 50 mm · 4D000259200 mm / 7.87 in
Ø 60 mm · 4D000164240 mm / 9.45 in
Ø 63 mm multilayer · R 240000971240 mm / 9.45 in
Ø 28 mm copper · 3D000252.RAME3D
Ø 28 mm copper · 4D000183.RAME4D
Ø 35 mm copper · 3D000244.RAME3D
Ø 35 mm copper · 4D000249.RAME4D
Ø 42 mm copper · 3D000251.RAME3D
Ø 42 mm copper · 4D000250.RAME4D

Multilayer: for multilayer composite pipes (Mepla, Alupex type). Copper: versions that CBC lists as specific to copper pipes.

Aluminium formers type B (inch, WHT) for UNI 42, 60, 63 and 70/C

VersionArticle no.Ø in mmRadius
1/4″ · 3D0006306.35 mm3D
5/16″ · 3D0006317.94 mm3D
3/8″ · 3D0006329.52 mm3D
1/2″ · 3D00026112.70 mm3D
1/2″ · 4D00026212.70 mm4D
5/8″ · 3D00026315.88 mm3D
5/8″ · 4D00026415.88 mm4D
3/4″ · 3D00026519.05 mm3D
3/4″ · 4D00026619.05 mm4D
7/8″ · 3D00026722.22 mm3D
7/8″ · 4D00026822.22 mm4D
1″ · 3D00026925.40 mm3D
1″ · 4D00027025.40 mm4D
1″1/8 · 3D00027128.58 mm3D
1″1/8 · 4D00027228.58 mm4D
1″1/4 · 3D00027331.75 mm3D
1″1/4 · 4D00027431.75 mm4D
1″3/8 · 3D00027534.92 mm3D
1″3/8 · 4D00027634.92 mm4D
1″1/2 · 3D00027738.10 mm3D
1″1/2 · 4D00027838.10 mm4D
1″5/8 · 3D00050641.28 mm3D
1″5/8 · 4D00050841.28 mm4D
1″3/4 · 3D00053344.45 mm3D
1″3/4 · 4D00053244.45 mm4D
1″7/8 · 4D00057947.62 mm4D
2″ · 4D00027950.80 mm4D
2″1/4 · 4D00028057.15 mm4D
2″3/8 · 4D00058160.32 mm4D

Cast iron formers type C (mm) for UNI 42 to 89

VersionArticle no.RadiusWall with counterformer
Ø 6 mm · R 3000063630 mm / 1.18 in1–2 mm
Ø 8 mm · R 3000063730 mm / 1.18 in1–2 mm
Ø 10 mm · 3D00052630 mm / 1.18 in1–2 mm
Ø 10 mm · 4D00042640 mm / 1.57 in1–2 mm
Ø 12 mm · 3D00030936 mm / 1.42 in1–2 mm
Ø 12 mm · 4D00031048 mm / 1.89 in1–2 mm
Ø 14 mm · 3D00031142 mm / 1.65 in1–2 mm
Ø 14 mm · 4D00031256 mm / 2.2 in1–2 mm
Ø 15 mm · 3D00030745 mm / 1.77 in1–2 mm
Ø 15 mm · 4D00030860 mm / 2.36 in1–2 mm
Ø 16 mm · 3D00030548 mm / 1.89 in1–2 mm
Ø 16 mm · 4D00030664 mm / 2.52 in1–2 mm
Ø 17 mm · 3D00031351 mm / 2.01 in1–2 mm
Ø 17 mm · 4D00031468 mm / 2.68 in1–2 mm
Ø 18 mm · 3D00030354 mm / 2.13 in1–2 mm
Ø 18 mm · 4D00030472 mm / 2.83 in1–2 mm
Ø 19 mm · 3D00032657 mm / 2.24 in1–2 mm
Ø 19 mm · 4D00032776 mm / 2.99 in1–2 mm
Ø 20 mm · 3D00028160 mm / 2.36 in1–2 mm
Ø 20 mm · 4D00028680 mm / 3.15 in1–2 mm
Ø 22 mm · 3D00028266 mm / 2.6 in1–2 mm
Ø 22 mm · 4D00018288 mm / 3.46 in1–2 mm
Ø 24 mm · 3D00030172 mm / 2.83 in1–2 mm
Ø 24 mm · 4D00030296 mm / 3.78 in1–2 mm
Ø 25 mm · 3D00028375 mm / 2.95 in1–2 mm
Ø 25 mm · 4D000284100 mm / 3.94 in1–2 mm
Ø 26 mm · 3D00029978 mm / 3.07 in1–2 mm
Ø 26 mm · 4D000300104 mm / 4.09 in1–2 mm
Ø 28 mm · 3D00029784 mm / 3.31 in1–2 mm
Ø 28 mm · 4D000298112 mm / 4.41 in1–2 mm
Ø 30 mm · 3D00014790 mm / 3.54 in1–2 mm
Ø 30 mm · 4D000148120 mm / 4.72 in1–2 mm
Ø 32 mm · 3D00028796 mm / 3.78 in1–2.5 mm
Ø 32 mm · 4D000289128 mm / 5.04 in1–2.5 mm
Ø 34 mm · 3D000290102 mm / 4.02 in1–2.5 mm
Ø 34 mm · 4D000291136 mm / 5.35 in1–2.5 mm
Ø 35 mm · 3D000145105 mm / 4.13 in1–2.5 mm
Ø 35 mm · 4D000146140 mm / 5.51 in1–2.5 mm
Ø 37 mm · 3D000292111 mm / 4.37 in1–2.5 mm
Ø 37 mm · 4D000293148 mm / 5.83 in1–2.5 mm
Ø 38 mm · 3D000143114 mm / 4.49 in1–2.5 mm
Ø 38 mm · 4D000144152 mm / 5.98 in1–2.5 mm
Ø 40 mm · 3D000294120 mm / 4.72 in1–2.5 mm
Ø 40 mm · 4D000295160 mm / 6.3 in1–2.5 mm
Ø 42 mm · 3D000141126 mm / 4.96 in1–2.5 mm
Ø 42 mm · 4D000142168 mm / 6.61 in1–2.5 mm

From 2.5 mm wall thickness: counter rollers instead of the counterformer.

Cast iron formers type E (inch, WHT) for UNI 42 to 89

VersionArticle no.Ø in mmRadiusWall with counterformer
1/4″ · 3D0006336.35 mm3D1–2 mm
5/16″ · 3D0006347.94 mm3D1–2 mm
3/8″ · 3D0006359.52 mm3D1–2 mm
1/2″ · 3D00033212.70 mm3D1–2 mm
1/2″ · 4D00033312.70 mm4D1–2 mm
5/8″ · 3D00033415.88 mm3D1–2 mm
5/8″ · 4D00033515.88 mm4D1–2 mm
3/4″ · 3D00055219.05 mm3D1–2 mm
3/4″ · 4D00055319.05 mm4D1–2 mm
7/8″ · 3D00055422.22 mm3D1–2 mm
7/8″ · 4D00033922.22 mm4D1–2 mm
1″ · 3D00034025.40 mm3D1–2 mm
1″ · 4D00034125.40 mm4D1–2 mm
1″1/8 · 3D00034228.58 mm3D1–2 mm
1″1/8 · 4D00034328.58 mm4D1–2 mm
1″1/4 · 3D00034431.75 mm3D1–2.5 mm
1″1/4 · 4D00034531.75 mm4D1–2.5 mm
1″3/8 · 3D00034634.92 mm3D1–2.5 mm
1″3/8 · 4D00034734.92 mm4D1–2.5 mm
1″1/2 · 3D00034838.10 mm3D1–2.5 mm
1″1/2 · 4D00034938.10 mm4D1–2.5 mm
1″5/8 · 3D00050741.28 mm3D1–2.5 mm
1″5/8 · 4D00050941.28 mm4D1–2.5 mm

From 2.5 mm wall thickness: counter rollers instead of the counterformer.

Cast iron formers type L for gas pipes (UNI 42 to 89)

With a counterformer or counter rollers, depending on the wall thickness of the pipe.

VersionArticle no.Ø in mmRadius
1/4 GAS · R 4700052413.72 mm47 mm / 1.85 in
3/8 GAS · R 53.500019417.2 mm53.5 mm / 2.11 in
1/2 GAS · R 5900019321.3 mm59 mm / 2.32 in
3/4 GAS · R 7800016526.9 mm78 mm / 3.07 in
1″ GAS · R 10000017133.7 mm100 mm / 3.94 in
1″1/4 GAS · R 127.200082442.40 mm127.2 mm / 5.01 in
1″1/4 GAS · R 15000017242.40 mm150 mm / 5.91 in

Matching counterformers, rings and machines

The formers work with:

Manufacturer information

Manufacturer details in accordance with the EU General Product Safety Regulation (EU) 2023/988:

ManufacturerC.B.C. S.r.l.
Postal addressVia L. Einaudi, 3, 42016 Guastalla (RE), Italy
E-mailcbc@cbc.it