• Resistance: Smooth wind resistance (turbine blade) with 10 non-polar gear settings.
• Smart Tracking: High-accuracy monitor with Bluetooth BLE (FTMS) and OTA firmware upgrades.
• Massive Battery: Rechargeable lithium battery (Type-C) delivers up to 200 hours of endurance.
• Construction: Premium aluminium alloy body, UHMWPE chain, and solid wood multilayer board base.
• Auckland Local: Commercial-grade quality. Test it today at our Wairau Valley Showroom!

Unleash Full-Body Explosive Power

The Commercial Ski Erg Machine (Model SK550) is rigorously designed for high-performance cardio training, ski-specific conditioning, and relentless full-body endurance work. Unlike basic home equipment, this machine utilizes a highly advanced wind resistance system paired with a responsive turbine blade. Therefore, it delivers a deeply satisfying, rowing-style air resistance feel. With 10 non-polar gear settings instantly available, you can seamlessly adjust your training intensity from a light aerobic warm-up to a brutal, heavy-pulling power session.

Furthermore, the SK550 is built to thrive in demanding environments, making it the ultimate choice for commercial gyms, busy PT studios, and uncompromising premium home setups. Because it features a heavy-duty aluminium alloy body, tear-resistant UHMWPE pull chains, and highly comfortable TPR overmoulding handles, the machine guarantees unwavering stability and long-lasting durability even under the most extreme daily use.

Smart Connectivity & Unmatched Endurance

• Ultra-Precise Tracking: First, the high-precision monitor (error margin less than 1/1000) provides crystal-clear feedback on pace, stroke rate, power output, heart rate, force curve, drive length, and projected finish times.
• Bluetooth Integration: Second, it effortlessly connects via Bluetooth BLE (FTMS protocol) to the POWERFUN software. Thus, you can instantly engage in individual training, dynamic group classes, or thrilling online competitions.
• 200-Hour Battery Life: Finally, say goodbye to messy power cords. The built-in rechargeable lithium battery features convenient Type-C charging and provides an astonishing 200 hours of endurance on a single charge.

The GravoMax Advantage: Why Buy From Us?

When you invest in heavy cardio equipment, who you buy from matters just as much as what you buy. Here is why GravoMax stands completely apart from budget fitness retailers:

• Strictly Professional Grade: We refuse to deal in lightweight, wobbly “home-use-only” gear. The SK550 is a true commercial beast, exactly matching the build quality found in high-end sports facilities.
• Local Auckland Support: Unlike faceless drop-shippers, we have a physical showroom in Wairau Valley. You can walk in, test the resistance, and know that genuine local warranty support is always right around the corner.
• Optimized Heavy Freight: We specialize in moving heavy iron and massive machines. Therefore, our specialized freight network ensures you get this 62kg package delivered across NZ safely and far more cost-effectively than standard retail shipping.

Complete Technical Specifications

Frequently Asked Questions (FAQ)