Hoist Fitness Chin/Dip Assist HD-3701

HD-3701 Assisted Dip and Pull Up Machine

The HOIST HD-3701 is a selectorized assisted dip and pull-up machine built for commercial and light-commercial gyms. A counterweighted knee pad offsets part of the user's bodyweight, so beginners can complete full-range pull-ups, chin-ups, and dips, then fold away so stronger users train the same frame unassisted.

• Frame line — HOIST HD Dual Series
• Assist control — Fold-out, stowable knee pad
• Warranty tier—Commercial and light commercial
• Installation—Bolts to the exercise floor
• Assembly—Two people, hand tools
• Ordering—Private invoice, quote-based

How the HD-3701 assists with pull-ups and dips

The stack does the opposite of what you expect. On every other pin-loaded station, more weight makes the set harder. Here, the weight you select is carried by the knee pad and counted against your bodyweight, so a heavier pin makes the rep easier.

You kneel on the pad, take your grip, and the machine holds up the share you cannot yet lift yourself. As you get stronger you pin less. That is the whole training arc, and it applies to assisted chin-ups and assisted dips alike, since both run off the same pad. Fold the pad into its stowed position and the frame becomes a straight pull-up and dip station. Hoist builds this same logic across the wider Hoist Fitness line, but the HD-3701 is its compact expression of it.

What muscles does an assisted dip and pull-up machine work on? Pull-ups and chin-ups load the lats, mid-back, and biceps. Dips shift the work to the chest, front shoulders, and triceps. Running both on one frame covers the two halves of upper-body pushing and pulling.

Who an assist station is really for

An assist machine is the only station in a gym you buy hoping people stop needing it. Every listing in this category sells that progression as a feature. Almost none of them follows it to the buying decision it creates.

For one person, the assisted side has an expiry date. Train consistently and you will pin less, then less again, then stow the pad. What you own after that is a well-built four-grip pull-up and dip frame. For a facility, that expiry never arrives, because new and returning members keep walking in at the beginning of the curve. That difference decides whether this machine earns its place.

Choose the HD-3701 if new or returning lifters keep arriving — and if the unassisted frame is still worth owning after they no longer need the pad.

Picture a training studio that signs twenty new members a quarter. Half of them cannot do a single strict pull-up. That station is occupied every week for years, and it quietly converts beginners into people who use the rest of your floor. A single strong lifter at home reaches the same endpoint in a few months.

Can beginners and advanced lifters share the same machine? Yes, and that is the point of the fold-out design. One user pins assistance, the next stows the pad and trains bodyweight, with no tools and no reconfiguration between them. If you are planning a full floor rather than a single purchase, book a gym design session with Hamilton Home Fitness before you commit the space.

Key features that matter on the floor

• ✅ Beginners get full-range reps from day one
• ✅ Assistance drops as strength climbs
• ✅ One frame serves every strength level
• ✅ Knee pad stows for true bodyweight work
• ✅ Grip variety spreads elbow and wrist load
• ✅ Climbing holds build real gripping strength
• ✅ Narrow dips shift work toward the triceps
• ✅ Wide dips open the chest and shoulders
• ✅ Kneeling entry feels secure under load
• ✅ Narrow footprint fits crowded gym floors
• ✅ Anchored frame stays planted through reps
• ✅ Commercial-grade build for daily traffic

What ownership actually involves

Plan for a two-person build. Hoist's assembly instructions call for two people plus ordinary hand tools, and finish with a squareness check to confirm the guide rods sit perpendicular in both directions.

The frame must then be bolted to the exercise floor using bolts of at least four and a half inches, which Hoist specifies to prevent tipping. That is a placement decision you make once, so confirm the position, the surrounding clearance, and the floor construction before delivery day rather than after. It is worth checking against the rest of your commercial fitness equipment range so traffic flows sensibly around the station.

Full specifications

Size and footprint

• Length — 51.75 in (132 cm)
• Width — 47.75 in (121 cm)
• Height — 83.25 in (212 cm)
• Machine weight — 579 lb (262 kg)

Resistance and handles

• Weight stack — 210 lb (95 kg) standard
• Pull-up grips — Four positions offered
• Grip types — Flip 'N Grip® and climbing holds
• Dip handles — Wide and narrow positions

How it compares on your floor

Three assist stations sit on this site at very different price points. The honest headline is that the Body-Solid FCD-STK weight-assist chin-up dip carries a stack of the same size for well under half the money, and Body-Solid publishes an optional larger stack for it. What the Hoist buys you is the HD Dual Series build, the four-grip pull-up station and Hoist's commercial warranty schedule. The Hoist Chin/Dip Assist RS-2700 sits above both.

Hoist HD-3701 Chin/Dip Assist

• Price — $5,390.00
• Weight stack — One standard size
• Body position — Kneeling
• Best fit — Mixed-ability commercial floors

Hoist Chin/Dip Assist RS-2700

• Price—$6,930.00
• Weight stack — 380 lb
• Body position — Standing foot plate
• Best fit — Heavier users, taller rooms

Body-Solid FCD-STK Weight Assist

• Price — $2,130.00
• Weight stack — 210 lb, 310 lb option
• Body position — Kneeling
• Best fit — Budget builds wanting room to grow

Who it suits, who should skip it

A strong fit for

• Gyms with new members arriving all year
• Studios coaching a first pull-up
• Schools and rooms with mixed strength
• Floors that also want an unassisted frame

Look elsewhere if you are

• A solo lifter already doing strict reps
• In a room that cannot be bolted into
• Reliant on a published user weight limit
• Planning to scale assistance later

Those last two deserve plain language. Hoist states that no optional weight upgrade is available for this machine, so the assist range you buy is the assist range you keep. Hoist also publishes no maximum user weight for this frame anywhere in its documentation, and we will not invent one. If the assisted function is not what you need, the Hoist CF-3252-A knee raise and dip frame or a set of simpler pull-up bars will cost you far less. Talk it through with our team before you spec it in.

Warranty, delivery, and ordering

Hoist warranties this product to the original purchaser only, guaranteeing it free from defects in workmanship and materials under normal use or service, and the policy applies to manufacturer defects only. Hoist reserves the right to change product specifications, design and function at any time.

Under Hoist's published schedule for commercial and light-commercial settings, the frame and body components carry ten years and structural moving parts five years, with three years on pulleys, bearings, and bushings and one year on cables, belts, upholstery, grips, and coatings. The cover is not transferable and excludes removal, transportation, and reinstallation. HOIST is a private-invoice brand here, so pricing and lead times are confirmed by quote. Review our shipping and returns terms before ordering, since a bolted-down commercial station is not a piece you want to send back.

Questions buyers ask before ordering

What does the assist pad actually take off your bodyweight?
Not the full pinned figure. Hoist's owner's manual for this machine publishes the ratio at 85%, so the top setting removes 178.5 lb from your bodyweight rather than the number printed on the stack. It matters when you are comparing this frame against rivals that advertise a one-to-one system, because the two figures are not the same unit.

Is a chin/dip assist machine worth it at home?
It depends entirely on how many people will use it and for how long. One lifter who trains consistently will outgrow the assisted side, and a plain pull-up and dip station covers the rest for a fraction of the outlay. Households with several members at different strength levels get far more out of it.

What counts as light commercial use?
Hoist defines it as facilities that do not charge monthly membership dues and where no more than fifty people a day use the equipment. Hotels, apartment complexes, personal training studios, and fire and police stations are the examples Hoist gives.

How much clearance does the frame need around it?
More than the footprint alone suggests. You need room to step in and kneel, room to hang at full extension, and open space behind the dip handles. Hoist publishes the frame dimensions only, so measure your intended position with a user in place rather than working from the numbers on paper.

Do assisted pull-ups build real pulling strength?
They build strength in the same movement pattern, which is why they are a standard progression tool in coached settings. Reducing the assistance over time is what drives the adaptation. Nobody can promise you a timeline, and progress depends on your training frequency, bodyweight and starting point.

How do I order a private-invoice Hoist machine?
Add it to your cart to start the process, or contact our Tennessee team directly and we will raise a quote covering the machine, freight and any configuration questions. We ship to all fifty states and can bundle the HD-3701 with other selectorized pulling stations on one invoice.

Order the HD-3701.

Put a station on your floor that meets beginners where they are and still gives your strongest members somewhere to train. Request your quote for the Hoist HD-3701 today, and our team will confirm freight, placement and lead time before anything ships.

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