arata AX-75 lightweight tent

This update newly adopts DAC Featherlite NFL 8.7.
This makes the AX-75 lighter while increasing its strength, with a minimum weight of just 880g *1, making it one of the lightest double-layer mountain tents in Japan.

In addition, the unique sleeve pivot structure common to the AX series and the truss structure that makes full use of the guy wires are light but high in strength, and can increase the strength of the tent according to weather conditions.

The product includes the tent body, outer tent, tent poles and ground fabric.
We also offer options to make the AX Series even more rugged and comfortable.

The AX-75 is a new generation Japanese mountain tent, perfect for climbers who value weight over space.

In addition to adopting DAC Featherlite NFL 8.7, this update also includes the following improvements and changes:

- Improved convenience by changing the installation position of the door pockets
- Reduce the risk of accidental damage to the sleeve by changing the installation method of the tent pole - Improve the local wear resistance of the bottom of the inner tent
-You can choose whether to use ground spikes-
Added resin rings to the lower mounting points of the inner tent cables to improve tension adjustment
- Improved storage of the ventilation pole on top of the flysheet when not in use

Technical Description <br>Introducing the technology and attention to detail used in the AX-75

New high-performance tent pole "DAC Featherlite NFL 8.7"



Further development of the AX-75 required the adoption of the DAC Featherlite NFL 8.7 to replace the Yunan UL 7.5.

Although this change increases the strength of the tent poles, DAC does not recommend using the NFL8.7 for alpine skiing in high winds. It therefore inherits the breakthrough of the previous model and allows the use of these poles while still being able to be used as an alpine tent.

The horizontal axis of the above figure is the weight of each 40cm pole, and the vertical axis is the second moment of area, which shows the relationship between the weight and strength of the DAC tent pole. (The further to the upper left, the lighter and stronger; the further to the lower right, the heavier and weaker

The DAC NFL 8.7 (blue squares) used in the AX-75 is about 22% lighter than the DAC Featherlite NSL 8.5 (red squares) commonly used in mountain tents of this size, but is about 17% weaker.

In the AX series, the pole strength is enhanced by incorporating the following three innovative mechanisms into the tent structure:



1. Full sleeve inner tent x unique sleeves

The AX series uses a sleeve to connect the inner tent to the poles. Compared to the hook type (hanging type) that has become common in tents in recent years, the sleeve type has a structure that distributes the load on the pole and prevents the pole from deforming.

On the other hand, the existing sleeve-type tents do not have two connected sleeves, and the structure of the two poles cannot effectively support each other. In contrast, the two rods of a hook-type pole are connected in the center via a swivel, so the two poles support each other.

Arata created their own unique socket hub that combines the best of both socket and hook types. As shown in the figure above, the two sleeves are connected through the hub, so that the two rods can support each other even though they are sleeve-type.



This structure may seem difficult to set up for entry-level users, but it can actually be set up quickly since there is no need to insert the hooks one by one. Although this may be difficult, if necessary, you can set up the flysheet, inner tent and groundsheet at once because they are already connected together, which is an advantage when setting up in rainy weather.





2. Casing hub pull point



The AX Series has cable tie points on the bushing hub. By tying the poles together and crossing them and securing them with nails (as shown in the photo above), two poles can be connected together as securely as if they were connected with a hook swivel.



The sleeve pivot cable can be passed through the hole in the top of the flysheet. The AX-75 has a larger projected area along its long side, so it is more susceptible to long-side wind. The Sleeve Hub Guy Point *2 is an original Arata feature that increases the wind resistance of the tent by fixing the long side that is most subject to displacement from the top of the tent.
(It is more convenient to use the optional emergency pull wire kit)



3. Inner pull wire

The inner draw cord is installed on the inside of the short edge of the AX series inner tent. This serves the same purpose as the reinforcement brackets commonly found in prefabricated buildings, helping to prevent the tent from buckling due to wind blowing off its long sides.



In addition, the AX series is also available with an optional emergency guy wire kit, which increases the strength of the tent at the expense of internal space. We recommend bringing it especially on long hikes with unpredictable weather or when setting up a tent in places where the weather is prone to change.



The AX series has expanded luggage space and improved wind resistance.


It is equipped not only with front space on the entrance side but also with rear space. This space forms a luggage compartment and also improves wind resistance at the rear.

X-shaped dome tents that can accommodate 1-2 people are susceptible to wind from the longer side because the projected area on that side is larger. Single-entry tents usually have a rear section that fits tightly against the inner tent to save weight, but this makes the tent less able to deflect wind, meaning it is more susceptible to winds from certain directions.

The construction of the AX series focuses on sturdiness and practicality without excessive pursuit of lightweight design.



Distance from ground to tarpaulin


Raising the bottom of the tarp is a common way to save weight, but the AX series is designed not only for stormy weather with heavy winds and rain, but also for snowfall, so it is set as low as possible.

If there is strong wind and rain, lift the tarpaulin to reduce the risk of wind blowing rain into the tent. The AX series is also designed for use in snowy seasons and still requires a rain cover. The AX series can fill the gap between the ground and the tarpaulin with snow, thus preventing snow from entering the tarpaulin.



The color of the tent is not easy to see through



In popular mountain tent camps, it is often easy to reach out and touch the tent next to you. Modern tents are made of thin cloth, and if the color is light, the people inside can be vaguely seen even in the daytime.

The inner and outer tents of the AX series are both dark gray, which prevents you from seeing what's inside from the outside during the day, and can also enhance the clarity of people's outlines when the lights are turned on at night.

The downside of using dark grey is that the temperature inside the tent will rise during the day, but in hot weather, it will be difficult to stay inside the tent during the day no matter what the colour is. To this end, the AX series has color settings that prioritize privacy protection.

Technical specifications

arata AX-75
Version : 2.0
Seasons: 4-season
Sleeping Capacity: 1-person
Packed Size: 24 × 17 × 11cm (L x W x H)
Minimum Trail Weight: 880 g
Packed Weight: 1065g (Including Optinal Stake 12pcs, Excluding GroundSheet 68g)
Floor Dimensions: 75 x 200cm (L x W)
Peak Height : 93cm
Number of Doors : 1 door (There is one other door for luggage.)
Pole Material: Aluminum DAC Featherlite NFL 8.7
Inner Fabric: 10D breathable nylon
Floor Fabric: 15D ripstop nylon silicone coated (PU1500)
Rainfly Fabric: 15D ripstop nylon with silicone coating (PU1200)
Contents: Tent body, Flysheet, Groundsheet, Tent poles, and Storage bags

Can be purchased

1) Ground Sheet for Back Room
Fabric: 15D ripstop nylon silicone coated (PU1500)
Weight: 43g (Ground Sheet: 39g/Bag: 4g)

2) Emergency Guyline Kit

Inner Diagonal Guylines × 4pcs
Sleeve Hub Guylines × 2pcs
DAC J-Stake DAC J-Stake × 2pcs

This is an optional item that increases the strength of the AX series.
By installing an emergency guy wire kit like the one pictured above, you can significantly increase the strength of your tent, but at the expense of interior space.
We recommend bringing it especially on long hikes with unpredictable weather or when setting up a tent in places where the weather is prone to change.

Note that the number of included DAC J stubs varies from version to version.
There is no difference in draw cord length between the different versions.

3) DAC J-STAKE Set (12 pieces)

About 11g/part
DAC J-STAKE is a ground spike that Arata trusts and believes is suitable for Japan's mountain environment.
The construction involves cutting the sides of extruded TH72M aluminium alloy, a simple method with excellent cost performance.
The top is designed to ensure that the force is applied in a straight line and that no force that would cause the cable to break is applied to the component to which the cable is attached.
The V-shape with a slight notch in the middle provides an excellent balance of penetration and support, allowing it to penetrate firmly and grip the ground without breaking, from soft ground to hard ground piled with large rocks.
DAC’s anodizing and heat treatment maximizes the material’s potential, making it stronger, harder, more scratch-resistant, and less prone to breaking than typical aluminum spikes from other companies.