iOptron Tri-Pier 360

iOptron Tri-Pier 360 Heavy Duty Portable Pier for CEM120 and Large Mounts

Part Number: 8037A

Rock-Solid Stability Meets Field-Ready Portability

The iOptron Tri-Pier 360 is a heavy-duty field pier designed to support today’s largest portable mounts, including the CEM120, CEM60, and iEQ45. Combining the strength and rigidity of a permanent pier with the portability and height adjustment of a tripod, the Tri-Pier 360 offers a best-of-both-worlds solution for astronomers who need observatory-grade stability at remote locations or semi-permanent installations.

With a 360 lb maximum payload capacity and a rugged construction of ¼-inch-thick aluminum alloy, this pier can easily handle fully loaded imaging setups, large optical tubes, counterweights, and accessories—without flexing, wobbling, or shifting under load. Whether you’re running a deep-sky observatory rig or a large refractor for visual use, the Tri-Pier 360 provides a trustworthy foundation that won’t let you down.

Built for the CEM120—But Compatible with More

Designed specifically with the iOptron CEM120 in mind, the Tri-Pier 360 is the recommended field solution for those looking to deploy this heavy-duty mount in the field without the need for a permanent concrete pier.

However, it’s not limited to just the CEM120. The Tri-Pier 360 also supports:

• iOptron CEM60

• iOptron iEQ45 and iEQ45 Pro

• Other mounts using compatible adapter plates (sold separately)

With its broad 8¼" × 8¼" top plate (210mm x 210mm), the pier is ready to accept large-format mounting hardware and offers a spacious surface for secure installation.

Built to Withstand the Elements—And Anything You Mount On It

The Tri-Pier 360 is CNC machined from solid aluminum alloy and anodized for a professional, corrosion-resistant finish. The pier wall is a full ¼" thick (6.35mm), delivering impressive rigidity that minimizes vibration and ensures long-term structural stability—even under heavy sideloads from wind or asymmetric payloads.

The three CNC-machined legs are independently adjustable and equipped with precision-ground leveling feet, allowing you to compensate for up to 2 inches of uneven ground. Whether you're setting up on gravel, grass, or concrete, the Tri-Pier 360 adapts to your environment while keeping your mount level and rock steady.

Practical Adjustability and Compact Transport Dimensions

Although designed for strength, the Tri-Pier 360 is also engineered with portability in mind:

• Adjustable Height: 32" to 40" (813mm to 1015mm), ideal for varying scopes and viewing conditions

• Folded Dimensions: 11" diameter x 31" long (280mm x 785mm) for storage and transport

• Leg Spread: Up to 42" diameter (1065mm) for maximum footprint and stability

• Self-Weight: ~42 lbs (19 kg), manageable by one person in the field

Despite its robust design, the pier folds down compactly and can be transported in most vehicle cargo areas. This makes it ideal for semi-permanent backyard installations, outreach programs, remote site astrophotography, and mobile observatories.

Observing Tip

If you're upgrading to a CEM120 or running a permanently set-up CEM60 rig, you’ll want to eliminate vibration, flex, and frustration. The Tri-Pier 360 lets you do that without pouring concrete. It’s especially valuable when using long focal length instruments, where even a subtle tremor can ruin guiding or smear your exposures. With 360 lbs of payload support and 2" of fine leveling control, this pier keeps your imaging train perfectly aligned—regardless of surface or payload.

Final Thoughts

The Tri-Pier 360 is not just a tripod—it’s a professional-grade portable pier system that delivers observatory-level performance in the field. With a massive payload capacity, robust CNC construction, wide leveling range, and generous adjustability, it's the ultimate support platform for high-end GoTo mounts like the iOptron CEM120 and beyond.

If you’re building a serious setup for deep-sky imaging or visual work with large optical tubes, the Tri-Pier 360 gives you the confidence—and the rigidity—to focus on the stars, not your base.