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Talk to a stepmill specialist| Assembled Dimensions | 185 cm (L) x 79 cm (W) x 211 cm (H) |
| Frame | Commercial grade tubular steel |
| Warranty | 8 Year Commercial Warranty on frame, 12 months on parts |
Commercial gyms and serious home trainers who want real stair-climbing get a revolving 8-step staircase that runs from 22 up to 125 steps per minute across 25 intensity levels. The ST-15 Vertex holds users up to 200 kg on a commercial steel frame, with 36 preset programs on an LED dot matrix console.
It suits a studio or garage gym that trains glutes and conditioning hard and wants a machine that handles back-to-back sessions, with large padded handrails, an emergency stop and infrared safety sensors built in. Wireless phone charging and a tablet holder keep your session running while you climb.
What strikes me first is the 125 steps-per-minute ceiling on a revolving 8-step staircase: that's genuine commercial pace. The 18 cm step height and 25 intensity levels mean a real gym-floor leg burn at home.
At 185 kg and 211 cm tall, this isn't a machine you shuffle around, so pick its spot once and leave it. The standout is that 200 kg user rating paired with an 8-year commercial frame warranty, built to keep working.
Adela Ledvinkova · Bachelor of Exercise & Sport Science · Our In-House Fitness Coach
Watching the revolving staircase move gives you a clearer sense of scale than any spec sheet. The 8-step rotating staircase and tall frame are easier to judge on video before you commit floor space.
What this means for you: If you are measuring up a room, the video shows exactly how the staircase moves and how much space it occupies.
A rotating staircase delivers the real stair-climbing motion that a stepper pad cannot, so your legs and glutes do the same work as climbing a flight of stairs. The 18 cm step height matches a standard building stair, which keeps the pattern natural underfoot.
Each step gives you a 50 cm wide by 24.5 cm deep platform to land on.
What this means for you: From my years coaching on gym floors, a true stepmill builds leg and glute endurance in a way flat cardio rarely matches.
The step rate runs from a slow 22 steps per minute up to a demanding 125, so the same machine suits a gentle warm-up and a hard interval session. With 25 intensity levels and 36 preset programs, you can set a target and let the console drive the effort.
What this means for you: Wide range matters in a shared or commercial setting where one machine has to work for a beginner and a fit regular on the same day.
The LED dot matrix console shows your key numbers at a glance: time, distance, calories, step count, pulse and steps per minute. Hand pulse sensors give you a rough heart-rate reading without any extra kit.
What this means for you: Grip sensors are a guide only, and the manual notes heart rate readings may be inaccurate, so treat the number as a trend rather than a precise zone.
A moving staircase needs proper safeguards. There are two emergency stop buttons on the handrails, and an infrared sensor at the bottom of the staircase stops the steps if you can't keep up with the speed. Footplates make it easier to step on and off.
What this means for you: In a busy gym or a home with family around, built-in safety sensors give you genuine peace of mind on a tall moving machine.
The tubular steel frame is built for commercial use, which shows in the 200 kg maximum user weight and the 185 kg net weight of the machine itself. That mass keeps the staircase planted and stable even under a hard, fast session.
What this means for you: A frame this heavy does not shift or flex underfoot, so your footing stays confident at higher step rates.
You get both large padded handrails and a fixed hand rail, so you can choose how much support you want through a session. The padding makes long climbs more comfortable where your hands rest.
What this means for you: Good handrails let you focus on leg drive rather than balance, which helps when fatigue sets in late in a climb.
The manual covers assembly in 5 steps: fitting the pedal, the console support column, the side support columns and handrails, the rear handrail and the console, connecting the wiring as you go. The fixings are Allen bolts and Phillips screws, and they come in the box.
What this means for you: Most of the work is bolting on the columns, handrails and console, but the main frame is heavy, so line up help before delivery day.
The frame carries an 8 year commercial warranty, with 12 months cover on parts. A commercial-length frame warranty tells you the maker expects this staircase to hold up to heavy daily use.
What this means for you: If this page shows the 100 Day Money Back Guarantee badge, you can also return it within 100 days of purchase if it's not the right fit.
| Frame | Commercial grade tubular steel |
| Staircase Type | Revolving staircase with 8 steps |
| Step Height | 18 cm |
| Step Area | 50 cm (W) x 24.5 cm (D) |
| Handrails | Large padded handrails and fixed hand rail |
| Safety Features | Emergency stop button, infrared safety sensors, footplates |
| Transport | Integrated transport wheels |
| Assembled Dimensions | 185 cm (L) x 79 cm (W) x 211 cm (H) |
| Net Weight | 185 kg |
| Gross Weight | 221 kg |
| Maximum User Weight | 200 kg |
| Packaging Dimensions | 145 cm (L) x 84 cm (W) x 143 cm (H) |
| Intensity Levels | 25 |
| Speed Range | 22-125 steps per minute |
| Workout Programs | 36 preset programs |
| Console | LED Dot Matrix display |
| Workout Data Displayed | Time, Distance, Calories, Step Count, Pulse, Steps/min |
| Heart Rate Monitoring | Hand pulse sensors |
| Device Integration | Integrated tablet/phone holder, wireless phone charging |
| Power Supply | AC Power Plug (10A) |
| Warranty | 8 Year Commercial Warranty on frame, 12 months on parts |
Effort: 5 assembly steps in the manual; the manual notes that moving the machine may take 2 or more people. Tools: the fixings are Allen bolts and Phillips screws (bolts and fixings are included).
The speed runs from 22 to 125 steps per minute across 25 intensity levels, so it suits everyone from a first-timer walking slow to a conditioned athlete pushing hard intervals. With a 200 kg maximum user weight and commercial frame, it's built for busy gym floors and serious home training alike. The 36 preset programs give you structure without planning sessions yourself.
It stands 211 cm high, and you'll be standing on the steps above floor level, so check there's comfortable headroom for the tallest user. The manual also asks for 100 to 200 cm of safety space around the machine. The full footprint is 185 cm long by 79 cm wide.
The hand pulse sensors are fine for a rough check between intervals, but grip sensors are never spot-on once you're moving and gripping hard, and the manual itself says heart rate readings may be inaccurate. Treat the number as a guide. The console still displays time, distance, calories, step count and steps per minute throughout your session.
The main frame arrives partially assembled, and the manual covers the rest in 5 steps: columns, handrails, console and wiring. The fixings are Allen bolts and Phillips screws, all included. At 185 kg net it's heavy to position and the manual says moving it may take 2 or more people, so clear your space first and use the integrated transport wheels to roll it into place.
It ships packaged at 145 cm long by 84 cm wide by 143 cm high, with a gross weight of 221 kg, so it arrives as freight rather than a standard parcel. Check the carton for transit damage before you sign. If anything looks off, note it and get in touch with us straight away.
Take photos before unpacking and email them to support@cardioonline.com.au within 48 hours of delivery. We'll lodge the freight claim, organise replacement parts or a full unit, and stay across it until you're up and running. You don't deal with the courier or the manufacturer directly, that's our job to sort.
You get an 8 year commercial warranty on the frame and 12 months on parts, handled locally by us. The 8 year frame cover reflects the commercial grade tubular steel construction and 200 kg user rating. If something needs attention, contact our team and we'll organise it for you.
It has two emergency stop buttons, infrared sensors at the bottom of the staircase and footplates, plus large padded handrails and a fixed hand rail for stability. The sensors matter on a revolving staircase: if you can't keep up with the speed and drift to the bottom, they trigger an emergency stop. The 18 cm step height and wide 50 cm step area give you a confident, natural stride.
Click below to download the user manual.
Download the user manual (PDF)This product ships in 2-3 business days after you place your order.
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Try it for 100 days. Return it if it is not right.
If your equipment is not right for your space or your training once you have lived with it, you can request a return within 100 days of purchase for a refund of the product price.
Available on products showing the 100 Day Money Back Guarantee badge. Return shipping is paid by the customer unless otherwise agreed. Original delivery, installation and service fees are non-refundable. See the full policy: /pages/risk-free-returns
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