Mackay Recessed flange isolator

Mackay Type 409 is a small two-hole recessed flange isolator with base number M80409. It measures 89 x 54 x 30mm and weighs 0.1kg.

Four part numbers cover Duro 35, 45, 60 and 70 (M8040935, M8040945, M8040960 and M8040970). The Max Load column gives two figures for each, at 2mm and 3mm displacement, from 15 and 25kg for Duro 35 up to 65 and 100kg for Duro 70. The centre bolt is M12 torqued to 40Nm. M80409 may or may not need overload and rebound washers depending on the installation; they are supplied separately, as the M18409A overload washer and the M15286 rebound washer.

Where this product is used

• Recessed flange mounting of equipment in the 15 to 100kg Max Load range, depending on Duro and displacement
• Installations that use overload and rebound washers to limit the movement of the suspended equipment under shock loads, where the installation needs them

Features

• Four Duro grades (35, 45, 60 and 70), stamped into the flange
• Two Max Load figures for each part number, at 2mm and 3mm displacement
• May or may not need overload and rebound washers, depending on the installation
• M12 centre bolt with a recommended assembly torque of 40Nm

Key specifications

Choosing the right option

Choose the Duro by load first. Each part number has a Max Load at 2mm displacement and a higher one at 3mm, so compare the load each mount carries with the figure at the displacement you are designing for. If the installation needs washers, ensure clearance between the rebound washer and the base of the isolator under static load, and to torque the M12 centre bolt to 40Nm. Check the 89 x 54mm flange and the two ø9mm holes 73mm apart against your mounting surface. All properties are nominal.

Related Mackay products: Mackay Overload Washer - M18409A, Mackay Recessed Flange Washer M15286, Mackay Recessed Flange Isolator Type 31, Mackay Recessed Flange.