Seco 90550 Tri-Max® Standard Quick Clamp Tripod
(Same as Crain 90550)
The Seco Tri-Max® 90550 is the industry benchmark tripod for surveyors and contractors who demand absolute stability and certified accuracy. Built to meet ISO 12858-2-H standards, it is the only tripod on the market that holds its calibration after years of heavy field use—making it the go-to choice for robotic total stations, 3D scanners, GNSS gear, and high-end construction lasers.
Why Contractors Choose the SECO Tri-Max 90550
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✅ Certified accuracy – trusted worldwide by DOTs, government agencies, and construction firms.
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✅ Rock-solid stability – fiberglass legs and reinforced clamps eliminate flex and vibration.
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✅ Quick clamp locks – get set up fast, stay locked even in extreme conditions.
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✅ Jobsite durability – won’t warp, swell, or loosen like wooden tripods in rain, mud, or sun.
Seco 90550 Tri-MAX Key Features
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6-5/8" flat head with a large 2-5/8" center hole for easy plumb setups.
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Internal retaining system prevents leg kick-out and slips on slick concrete or asphalt.
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Oversized footbeds for better leverage when stepping tripod legs into tough ground.
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Replaceable steel points + retention loops for attaching safety straps on slopes.
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Handles instruments up to 65 lb (30 kg) without compromise.
Seco 90550 Tri-MAX Specs
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Lock Type: Quick Clamp
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Hardware: Black Anodized
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Material: Fiberglass legs (non-conductive & weatherproof)
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Extended Height: 71 in. (1.8 m)
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Weight: 17 lb (7.7 kg)
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Part Numbers: Seco 90550 / Crain 90550
? Contractor’s Take:
This isn’t your run-of-the-mill tripod. The Tri-Max is built for crews running robotic stations and dual-slope lasers all day, every day. Its stability keeps you from chasing “wandering zeroes” and saves re-work on high-dollar projects. If you’ve ever had a cheap tripod slip or swell, you’ll appreciate why most DOTs specify the Tri-Max in their bids.
