Mast Coupler - used to mate a 2-7/8" Tube to a 2" Chrome-moly tube and retain full yield strength of both tubes.

PE Certified for your safety and reliability

1. Order the Mast coupler, Buyer supplies bolts and hardware, must be match drilled on site

2. Order a 2-7/8" OD DOM mast in the length you wish, make it as long a possible 20-22 feet

3. Order a 4130 Chrome molly mast in the length you wish + 2 feet to insert into the coupler

2 7/8" OD X .25" wall 1026 DOM (87k psi)  mast has a Yield Moment of 108,448 in-lbs

2 " OD X .25 wall  4130 chrome Moly ( 100k psi) mast has a Yield Moment of 53,689 in-lbs

2" OD X .25" wall 1026 DOM (87k psi)  mast has a Yield Moment of 46,710 in-lbs

Each Mast is tested, for chemical, metallurgical, and mechanical properties. A certificate verifies the strength of your mast.

A typical certificate is scanned and shown below: