ATX® Lat Tower Options for Power Racks
An ATX® lat tower bolts onto your power rack and gives you a high and low pulley without a second machine footprint. The current range is the 510 and 520 for compact home racks, the 640/650/660 for 600-series commercial racks, and the 780 for the PRX-780. Every current tower is a true 1:1 ratio. Choose plate-loaded if you already own Olympic plates; choose a stack if you want fast changes and a smaller working area. If you do not have an ATX rack, start with the back and lat machines collection instead of this guide.Which lat tower fits your ATX® rack?
Which lat tower fits your ATX® rack?
Match the tower to the rack you own, then to the ceiling, then to how you want to load it.
- Which rack: 500-series, 600-series, or 700-series?
- Ceiling under about 2.0 m? The 510 and 640 are the short options.
- Plate-loaded or weight stack?
- Home use (EN 20957 class H) or commercial studio (class S)?
Current Range:
| Model | Load | Height | Safe working load | Cert | Fits | Listed price (1 Oct 2026) |
|---|---|---|---|---|---|---|
| LTO-510-PL | Plate | 198 cm | 140 kg | Domestic H | Low-ceiling 500-series, including PRX-610 | $425 |
| LTO-510-SW | 100 kg stack | 197 cm | 140 kg | Domestic H | Low-ceiling 500-series | $1,395 |
| LTO-520-PL | Plate | 218 cm | 140 kg | Domestic H | PRX-520 / 620 / 650 | $445 |
| LTO-520-SW | 100 kg stack | 217 cm | 140 kg | Domestic H | PRX-520 / 620 | $1,425 |
| LTO-640-PL | Plate | 194 cm | 150 kg | Domestic H | PRX-640 | $845 |
| LTO-640-SW | 115 kg Stack | 214 cm | 150 kg | Domestic H | PRX-640 | $1,525 |
| LTO-660-PL | Plate | 194 cm | 150 kg | Domestic H | PRX-660 | $895 |
| LTO-660-SW | 115 kg Stack | 214 cm | 150 kg | Domestic H | PRX-660 | $1,595 |
| LTO-650-PL | Plate | 216 cm | 160 kg | Commercial S | PRX-650/655, HRX-620 with adaptor | $895 |
| LTO-650-SW | 115 kg stack | 216 cm | 160 kg | Commercial S | PRX-650/655, HRX-620 | $1,795 |
| LTO-780-PL | Plate | 228 cm | 150 kg | Commercial S | PRX-780 | $1,095 |
| LTO-780-SW | 125 kg stack | 228 cm | 150 kg | Commercial S | PRX-780 | $1,995 |
Every current ATX® lat tower is a true 1:1 ratio. There is no 2:1 pulley advantage. A 100 kg stack is 100 kg at the handle, plus the cable attachment. That is why an ATX stack feels heavier than the stack in a typical commercial gym.
Plate-loaded or weight stack?
Plate-loaded is the cheaper way in, and you can keep adding Olympic plates past the stack limit. The 600 series plate-loaded towers are the ones to pick if you want to go past the 115 kg stack. A stack is faster between sets and takes less floor space.
The 510 and 520 now have dedicated 100 kg stack models. The 640/650/660 stack is 115 kg. The 780 stack is 125 kg. Those stack towers are separate SKUs, not a field upgrade kit, unless the product page says otherwise.
Low ceiling (under 2.0 m)
The LTO-510 is the short tower, about 198 cm plate-loaded and 197 cm with the stack. While the LTO-640 sits slightly lower at 194cm for both plate loaded and pin loaded versions. ATX design the tower to sit at or just under the top of the matching rack. Still measure the product-page height against the room, including j-cups and any sloping ceiling.
510 and 520 — home and compact racks
The 510 and 520 are the domestic pair, EN 20957 class H, 140 kg safe working load. The 510 is the low-ceiling option. The 520 is the taller home tower, around 218 cm, for a PRX-520 and the racks listed on the product page.
Both now come plate-loaded or with a 100 kg stack.
600-series and half rack
The LTO-640 – is your new low ceiling lat pulldown options. It comes in two variants: Plate loaded with a max load of 150 kgs, and pin loaded with 115 kgs stack. Both versions stand 194 cm tall. Unlike the 510/520 Plate Loaded versions, this one comes with a dedicated leg lock. Other improvements are a counter high pulley which is useful if you want to do leaning back lat pulldowns. Suitable for PRX-640
The LTO-660 have the same features as the 640 with the key difference being the height – 214 cm. Suitable for PRX-660
The LTO-650 is the commercial tower for PRX-650 and PRX-655, EN 20957 class S, 160 kg safe working load, about 216 cm tall. The plate-loaded version is the one if you want to load past the stack. The stack version is 115 kg. An HRX-620 half rack needs the adaptor. Do not put a 650 tower on a 520 rack.
780 — current 700-series commercial tower
The LTO-780 is the current tower for the PRX-780. Plate-loaded or 125 kg stack, about 228 cm, EN 20957 class S, 150 kg safe working load. If you are replacing a 750-series setup, this is the tower to buy new.
What happened to the 750 and 800 towers
The ATX-LTO-750 and ATX-LTO-800-CA towers in the original 2020 version of this guide are no longer sold. If you already own a 750 tower it remains a solid commercial attachment. The current 700-series option to buy new is the LTO-780 plate-loaded or 125 kg stack on the PRX-780. We do not currently list an 800-series lat tower. Call if you need parts for a discontinued unit.
Standalone lat machines if you do not want a rack attachment
Do not force a tower onto a rack you do not own. You can find the ATX® Trinity Tower as well as free standing and wall mounted lat machines in our back and lat machine category.
What stayed true
The 1:1 ratio is still the point of these towers. They sit at or below the matching rack height. Warranty is 5 years. Certification is on each product page: class H for the 510/520, 640/660 and class S for the 650 and 780.
A Power Rack is one of the best investments that you can make in any gym environment. They allow you to do loads of exercises safely. Most importantly, some of those exercises like bench press and squats, are considered the most effective in terms of building strength and muscle mass.
In a home gym, or even a studio, you could train forever with just a Power Rack. You can hit every body part with multiple exercises.
However, adding a Lat Tower to a Power Rack will expand your universe like no other piece of gym equipment. It not only adds loads of exercises, but the added exercises complement the ones that you are already doing on the Power Rack.
While you can do quality exercises like chin-ups and bent-over rows with a Power Rack, the variety is a little thin. The Lat Tower gives you several quality pulling and rowing exercises, along with their many variations.
The list of accessory exercises and variations with a high/low pulley are nearly endless.
But the best part, particularly for gyms that are tight on space, is that Lat Options take up very little additional space. This is even more impressive when you take into consideration the vast number and quality of the exercises that they offer.
The ATX® Advantage
I mentioned in the ATX® Power Rack buying guide that ATX® is not only a mile ahead of their competition with their rack design but also with the quality and quantity of their optional attachments.
They have released a total of 12 different Lat Tower Options, which consist of both plate loaded and stack weight versions. The range includes options for users of different experience levels and budgets.
If you are looking at the range for the very first time, it can get quite confusing when you are choosing which one will suit you best.
In this article I will break down the different features of the different Lat Options to help you choose the best suitable option for your ATX® Rack.
The Design
Frame
One of the best things about any of the ATX® Lat Pulldown Attachment is the simplicity of the design. The frame itself is manufactured out of structural steel which not only provides you with a smooth movement, regardless of the load but also increases the overall stability of your Power Cage.
60 mm x 60 mm x 2 mm – ATX-LTO-510. ATX-LTO-520
80 mm x 40 mm x 2 mm – ATX-LTO-650-PL, ATX-LTO-650-SW
70 mm x 70 mm x 3 mm – ATX-LTO-750-PL, ATX-LTO-750-SW
Height
In the past the lat tower attachments would increase the overall height of the power cage. This prevented some of the users with limited ceiling height from getting this addon.
ATX® have solved this issue by making sure that the lat tower sits slightly lower than the highest point of any ATX® Rack. This is particularly handy when squeezing your Power Cage System up against the wall in a room with a pitched internal ceiling.
194 cm – ATX-LTO-640-PL, ATX-LTO-640-SW
197 cm – ATX-LTO-510-SW
198 cm – ATX-LTO-510-PL
214 cm – ATX-LTO-660-PL, ATX-LTO-660-SW
216 cm – ATX-LTO-650-PL, ATX-LTO-650-SW
217 cm – ATX-LTO-520-SW
218 cm – ATX-LTO-520-PL
228 cm – ATX-LTO-780-PL, ATX-LTO-780-SW
Base Weight
The overall stability and the smoothness of the movement has a lot to do with the base weight of the lat tower option, even when it shares the weight with the rack.
21 kg – ATX-LTO-510-PL
140 kg – ATX-LTO-510-SW
22 kg – ATX-LTO-520-PL
141 kg – ATX-LTO-520-SW
50 kg – ATX-LTO-640-PL
162 kg – ATX-LTO-640-SW
39 kg – ATX-LTO-650-PL
152.5 kg – ATX-LTO-650-SW
52 kg – ATX-LTO-660-PL
165 kg – ATX-LTO-660-SW
67 kg – ATX-LTO-780-PL
189 kg – ATX-LTO-750-SW
The ATX® LTO-510 & LTO-520 are the smallest members of the family. However, that does not mean that their structural integrity is compromised and that you will be left with a substandard product.
To reduce the manufacturing costs and still provide the optimum stability, ATX® opted for a single guide rail design. A 60 mm x 60 mm x 2 mm tube to be exact.
No matter how much weight you are planning on loading, you will never be able to Pull/Row enough to make the guide rail flex!
Stack Weight/ Can you upgrade later?
One of the main benefits of the stack weight version is the reduced footprint as well as the time saved loading/unloading the weight plates. But not everyone is willing to drop an additional few hundred dollars on a luxury which could be worked around.
Personally, I do not mind changing the weight plates as it gives me something to do between sets. It also allows me to load up the carriage in gradual increments (as low as 0.25 kg!)
For those who want this luxury but are not ready to spend the additional money in a single purchase, ATX® offers the opportunity to upgrade their plate loaded version (ATX-640/650/660 or ATX-780) with either *115 kgs or *125 kgs weight stack.
(*depending on the model of the lat tower)
Pulley Type
Quality pulleys will not only allow you to pull/row more weight but also aid in the smoothness of the movement.
You will find four different types of pulleys in the ATX® Machines:
90 mm – Nylon, 160 kgs capacity
115 mm – Nylon, 160 kgs capacity
140 mm – Aluminum, 160 kgs capacity
Each of them features dual bearings for improved stability, fluency of the movement, and increased weight load capacity.
Guide Rail Type
The previous generation of the lat tower attachments featured a 25mm thick steel, hollow tube design. This arrangement did a fantastic job providing a silky-smooth movement, even when heavyweight was being used.
The German philosophy is always to improve. That is why they have progressed to a solid steel 20mm thick guide rail. With a smaller surface area, there is even less resistance. Solid steel gives even more stability.
As mentioned above, the entry-level Lat Options – ATX-LTO-510 and ATX-LTO-520 – feature a simple square tube design. This significantly reduces the cost as the square tube not only acts as the structure, it also is the guide rail.
Some people may be put off by this type of design. There have been many a cheap Lat Option manufactured using this technique. When you started hitting moderate weights the weight carriage would start binding up.
Rest assured, there are no such issues with the ATX design. The carriage is configured so the drag is distributed evenly. Most importantly the bushing system is unique and flawless. It was used on the first generation ATX® Smith Cable Racks which cost thousands. There was nothing cheap about these machines.
60 mm x 60 mm x 2 mm – ATX-LTO-510-PL, ATX-LTO-520-PL
20 mm Solid Steel – The rest of them!
Weight Horn Dimensions
While the weight horn dimensions should not matter to you if you are planning on using Olympic adaptors as you can only use one size. Trust me the length will keep you satisfied. With a 1:1 ratio, you will be able to load up enough plates that will stop you in your tracks.
21.5 cm – ATX-LTO-510-PL, ATX-LTO-520-PL
22 cm – ATX-LTO-650-PL
25 cm – ATX-LTO-640/660-PL, ATX-LTO-780-PL
Weight Ratio
There is nothing worse than the customer having to spend their hard-earned cash on the lat tower attachment only for it to be compromised by mechanical advantage.
The more pulleys are involved in lifting the carriage/weight stack the higher the mechanical advantage. While it might be a great feature to boost your ego or a bragging point for Instagram likes, it is counterproductive.
Thanks to German ingenuity every single ATX® Lat Tower Option offers a true 1:1 Ratio.
While it might not seem like the most innovative feature out there, it does aid the user in a few different ways:
– There is no need to waste your time and money on loading the extra plates.
– It extends the longevity of the cables and pulleys, on the compromised machines, the weight just does not get halved automagically. Some pulleys would be taking the full load, the uneven wear and tear would require far more maintenance than the machines with true weight ratio.
– On an ATX® Lat tower you are lifting the loaded weight + the carriage weight (for plate loaded options)
Weight Load Capacity
There will always be someone for whom the safe working load of 160 kgs will not be enough.
Please remember that the weights you were training within your standard commercial gym will feel completely different on the ATX® Lat Tower due to non-existent mechanical advantage.
140 kgs – ATX-LTO-510, ATX-LTO-520.
150 kgs– ATX-LTO-640/660, ATX-LTO-780
160 kgs – ATX-LTO-650-SW/PL
Carriage Weight
It comes in handy to know how much weight exactly you are lifting. Especially when you are working out your training loads.
2.1 kgs – ATX-LTO-510-PL, ATX-LTO-520-PL
9 kgs – ATX-LTO-650-PL
To calculate the most accurate weight you should add an additional 600gr (2 x 300 gr) to the weight of the carriage. This is the weight of the Olympic weight horns.
6 kg – ATX-LTO-640/660-PL, ATX-LTO-780-PL.
High Pulley
The ATX® Lat tower options have been designed in a way where you would be able to get the full stretch at the top of the movement. This feature is sought after by taller users who cannot extend their arms at the top.
If you are planning on pulling heavy, the LTO-640/650/660 & LTO-780 includes adjustable knee rests. Which will allow you to lock yourself in so that you would not lift when you are pulling the weight down.
This only becomes needed when you are lifting approximately 80% of your bodyweight.
For those who are not concerned about training with more than 80% of their body weight, I would recommend opting for LTO-520-PL or LTO-510-PL. They are just as stable and boast a 140 kg weight load capacity but are significantly cheaper due to the square guide rail design and no knee lock.
For people using the the 510-PL or 520-PL systems, once you hit 80% of your bodyweight you can always start doing chin ups!
The LTO-510-SW and LTO-520-SW now include a knee rest.
Low Pulley
It’s all about comfort! ATX® includes footrests all of their Lat Towers.
This allows you to maintain the optimal stability when doing heavy rows.
Inclusions
Alongside the mainframe you will also receive a few accessories to help you get started:
3 x Carabiners – for securing your cable attachments to the pulley.
1 x Extension chain – for reducing the distance you must pull before you start your exercise.
Classification
Every single machine and attachment in ATX® range is certified for either domestic or commercial use:
EN 20957 H – Certified for Domestic/Small Studio use by European Standards.
EN 20957 S – Certified for Studio/Light Commercial Gym use by European Standards.
Warranty
Every single Lat tower comes with a 5-year manufacturers’ warranty.
FAQ
ATX design the tower to sit at or just under the top of the matching rack. The 510 is the short option, about 198 cm, for low ceilings. Confirm the product-page height against your room, including the j-cups and any sloping ceiling.
No. Buy the tower made for your series. 510 and 520 for 500-series compact racks, 640 for PRX-640, 650 for PRX-650/655 and HRX-620 with the adaptor, 660 for PRX-6640 and 780 for the PRX-780.
The 2020 article said no. You can now buy the LTO-510-SW and LTO-520-SW, dedicated 100 kg stack versions. Treat those as separate SKUs, not a field upgrade kit, unless the product page says otherwise.
True 1:1 ratio. There is no 2:1 mechanical advantage. A 100 kg ATX stack is a full 100 kg at the handle, plus cable attachments.
Do not try to retrofit a tower. Use a standalone lat or row from the back and lat machines category.
