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Steel construction

Where only precision counts

The requirements of the European standard EN 1090 are a major challenge for many steel construction companies. That is why the requirements for bolting tools — in production and above all on site — are very high. Plarad tools meet these requirements consistently.

With Plarad torque wrenches and tools, users have durable, safe, high-quality equipment. Plarad’s range complies with the latest EN, DIN and VDI standards for the various tightening methods.

EN 1090 bolting requirements at a glance

General

Tightening tools must have an accuracy of ±4% to EN ISO 6789 in all steps of the torque method. Every tool must be maintained to EN ISO 6789; pneumatic tools must be checked whenever the hose length changes. The same requirements apply to torque wrenches in the first step of the combined preloading method, but with an accuracy of ±10% and an annual inspection.

Torque method

Bolts are tightened with a tool of suitable working range; manual or automatic tools may be used. Impact wrenches may only be used for the initial tightening of each bolt. Torque must be applied evenly and without interruption. Tightening has at least two steps. Step 1: the wrench is set to approximately 0.75 Mr,i; this step must be completed for all bolts in the joint before the second begins. Step 2: the wrench is set to 1.10 Mr,i.

Combined method

Tightening by the combined preloading method has two steps. The first is carried out with a tool of suitable working range set to approximately 0.75 Mr,i, and must be completed for all bolts in the joint before the second begins. Unless specified otherwise, Mr,1 = 0.13 · d · Fp,C may be used as a simplification. In the second step, the specified angle of rotation is added to the turned part of the bolt assembly. The position of the nut relative to the bolt thread is marked after the first step so that the additional angle in the second step can be determined easily.

This summary is Plarad’s. For each project, the text of the standard and the project documentation apply.

Tools for this industry

Recommendations from the manufacturer Plarad, complemented by equipment from other brands in our catalogue.

Electric torque wrenches with documentation

11 in the catalogue

The new generation of Plarad electric torque wrenches with a documentation function is powerful, light and ensures precise, safe tightening. With documentation via Wi-Fi, it already meets Industry 4.0 requirements for bolting documentation.

Steel construction

EN 1090 bolting requirements at a glance

General

Torque method

Combined method

Tools for this industry

Electric torque wrenches with documentation

PLARAD electric torque multiplier DEM120 TSX

PLARAD electric torque multiplier DEM80 TSX

PLARAD electric torque multiplier DEM65 TSX

PLARAD electric torque multiplier DE1-48

PLARAD electric torque multiplier DE1-36

PLARAD electric torque multiplier DE1-30

PLARAD electric torque multiplier DE1-20

PLARAD electric torque multiplier DE1-10

Plarad DE1power electric torque wrench

Plarad DE1docu electric torque wrench

Plarad DE1control electric torque wrench

DA3 battery torque wrench

Plarad DA3power cordless torque wrench

Plarad DA3docu cordless torque wrench

Plarad DA3control cordless torque wrench

SmartBolts smart bolts

SmartBolts DTI smart bolts

Plarad DP1 / DPM pneumatic torque wrenches

PLARAD pneumatic torque multiplier DPM80 TSX

PLARAD pneumatic torque multiplier DPM65 TSX

PLARAD pneumatic torque multiplier DPM47 TSX

PLARAD pneumatic torque multiplier DP1-36

PLARAD pneumatic torque multiplier DP1-30

PLARAD pneumatic torque multiplier DP1-20

PLARAD pneumatic torque multiplier DP1-10

PLARAD pneumatic torque multiplier DP1-05

Plarad XVR / XVK hand torque multipliers

Hand torque multiplier XVR D 45

Hand torque multiplier XVR 90

Hand torque multiplier XVR 70

Hand torque multiplier XVR 65

Hand torque multiplier XVR 40

Hand torque multiplier XVR 35

Hand torque multiplier XVR 25

Hand torque multiplier XVK 15

STORK DS battery torque wrench

STORK DS battery torque wrench

Tecnogi ratchet torque wrenches

Ratchet torque wrench 990, 200-1000 Nm, 3/4'',

Ratchet torque wrench 980, 160-800 Nm, 3/4'',

Ratchet torque wrench 930, 60-350 Nm, 1/2'',

Ratchet torque wrench 920, 40-200 Nm, 1/2'',

Ratchet torque wrench 910, 20-100 Nm, 1/2'',

Ratchet torque wrench 906, 10-60 Nm, 1/2'',

Drive's impact sockets

Drive's impact sockets

In practice

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