ナカ工業 List of Products and Services

● Ideal for clean rooms, data centers, server rooms, etc. ● Aluminum die-cast floor panels that support 5,000N to 30,000N ● Compatible with floor heights H100 to H1,000 (mm) * ● Panel fixing methods: laid down, screw-fixed * For heights other than those mentioned above, please consult your sales representative. Additionally, there may be cases where support is not possible even within the specified floor heights. Please consult us for further details.

• Free access floor

●Seismic Design With a load of 5,000N/m2, it has high seismic performance according to specifications at 0.3 to 1.0G. ●Supports Floor Heights of 250 to 800mm Can be planned with a custom-made feel according to purpose and specifications. ●Lightweight Aluminum Panels Aluminum die-cast panels are lightweight and reduce the load on the building. ●Whisker-Free Whiskers are conductive crystalline structures that can form from electro-galvanized parts and are said to adversely affect computers. The CD-SR and CD-NP600h do not use electro-galvanized parts that generate whiskers.

• Free access floor

**Mechanism of Seismic Isolation Floor** When a horizontal force greater than friction is applied due to an earthquake, sliding occurs between the bearing section and the sliding panel. This reduces the floor response and velocity, while the sliding friction dissipates the seismic energy. The bearing section returns to the vicinity of the center of the sliding panel due to the action of the coil spring. There are two installation methods for the restoring mechanism, which is the coil spring: the "coil spring beam lower placement method" and the "coil spring peripheral placement method," which are selected based on design conditions such as the size and shape of the seismic isolation floor. ● Sliding Friction Method The sliding friction method, which has a simple structure and no complex mechanisms, is adopted. Additionally, since the sliding surface is oriented downward, there is no accumulation of dirt or dust, making maintenance easy. ● Wide Wiring Space The seismic isolation device is ultra-thin, approximately 70mm or 110mm above the slab surface. This allows for more wiring space and air conditioning space. ● Whisker-Free Whiskers are conductive crystalline structures that can form from electro-galvanized components and are said to adversely affect computers. The seismic isolation floor system does not use electro-galvanized components that generate whiskers.

• Free access floor

●Seismic Design The panels are securely fixed to the support legs, preventing panel detachment during an earthquake. ●Compatible with Floor Heights of 200 to 800mm You can plan with a custom-made feel according to your purpose and specifications. ●Steel Panels Filled with Lightweight Inorganic Material These non-combustible panels excel in dimensional accuracy, with no cracking, chipping, or dust generation. They feature outstanding strength and walking comfort. You can also directly bolt partitioning or computer equipment onto the panels. ●Whisker-Free Whiskers are conductive, hair-like crystals that can form from electro-galvanized parts and are said to adversely affect computers. The CS-NR and CS-SR do not use electro-galvanized parts that generate whiskers. ●(Public) Architectural Association Evaluated Products The IB Floor CS-NR and CS-SR are evaluated as free access floors with a 5000N specification, ensuring quality and performance in the Architectural Materials and Equipment Quality Performance Evaluation Project by the (Public) Architectural Association. (Only for some types)

• Free access floor

This is a seismic isolation expansion joint cover for floors. The exterior of buildings with seismic isolation structures undergoes significant horizontal displacement during an earthquake. The NSF floor joint is a seismic isolation expansion joint cover for floors that effectively accommodates this large displacement. Additionally, in urban areas where there is insufficient space between neighboring properties, there are also options for narrow seismic isolation openings.

• Expansion joint hardware

Snow cornices (seppi) are… In snowy regions, snow masses (snow cornices) that protrude from the roofs or rooftops of buildings can fall, causing harm to passersby or damaging windows and other parts of the building. Accidents of this nature occur frequently. Snow cornices are very dangerous as they become hard snow through repeated melting and freezing during their growth before falling. 【Features of Safety Wing】 ● Developed based on observational records from test installations and wind tunnel experiment data ● Installation height can be freely selected based on the snowfall amount in each region ● The multi-layered wing structure discharges snow to the leeward side without reducing wind speed ● The wing shape promotes melting of surrounding snow ● If performance degradation occurs due to changes in the surrounding environment after installation, the height of the device can be raised * Aluminum support posts can be applied at heights of 600mm (4 layers of wings) or less when installed at the top of a parapet.

• Eaves/Canopy

It is suitable for floor finish heights of H60 to 300mm. This system consists of a steel composite panel filled with lightweight inorganic material and seismic-resistant support legs (DP legs) that are height-adjustable and have a panel locking function. 【Panel】 ● AZ5000 Panel Steel composite panel filled with lightweight inorganic material (standard panel) *Opening panels and IB opening covers are optional items.

• Double Floor System

【Panel】 The filled panel is characterized by its exceptional walking comfort due to the lightweight inorganic material used for filling. It is recommended for areas with high foot traffic. On the other hand, the hollow panel, made from a single steel material, excels in recyclability. Additionally, it is approximately 10 kg/m² lighter than the filled panel, reducing the burden on buildings. ● AF Panel Steel composite panel filled with lightweight inorganic material ● AZ3000 Panel Steel composite panel filled with lightweight inorganic material (standard panel) *Opening panels and IB opening covers are optional items. ● AN3000 Panel Hollow all-steel panel (Eco Mark certified product)

• Double Floor System

**What is Willan?** It is a general term for a technology that uses visible light-responsive photocatalysts, which has been confirmed to reduce the number of bacteria and viruses not only with outdoor light but also with indoor lighting. This technology utilizes patents from the University of Tokyo and the Kanagawa Prefectural Institute of Industrial Technology. ● Antiviral and antibacterial properties ● High effectiveness with indoor lighting (effective even in dark places) ● Long-lasting effects due to inorganic antiviral agents ● Safety confirmed through various safety tests (acute oral toxicity, skin sensitization, mutagenicity, skin irritation)

• others

●Features● - Wide effective opening of 700×700 - Can be locked with a padlock when not in use - The gas damper allows for smooth one-handed opening and closing of the top cover - Excellent workability with four anchor bolts for retrofitting There is also a type available with a ground wire connection terminal (bond earth) for use as a lightning conductor (optional).

• Miscellaneous metal items

● New Hatch NHE2 Standard type for semi-external use from indoors. It has a simple odor prevention function with packing between the inner and outer frames. ● New Hatch NHF High load capacity type. It has a simple odor prevention function with packing between the inner and outer frames. ● New Hatch NHST Made entirely of stainless steel and suitable for outdoor use. Both the outer frame and inner lid have a tapered design for easy opening. It also supports non-welded fixing. ● New Hatch NHBBS Waterproof and odor-proof type. Made entirely of stainless steel and suitable for outdoor use.

• Inspection hatches, manhole covers, and ditch covers
• Miscellaneous metal items

● Wall Hatch WHA Wall inspection hatch with a lock, compatible with left and right hanging points / available in a large size of 450×700. ● Wall Hatch WHT Has airtight performance. ● Wall Hatch WHM Slim joint type compatible with left and right hanging points. ● Wall Hatch WHOD Custom size compatible with left and right hanging points / maximum size is 900×900mm.

• Miscellaneous metal items
• Inspection hatches, manhole covers, and ditch covers

● High Hatch MM2f Slim joint type for both outer and inner frames ● High Hatch MMH2 Joint type for both outer and inner frames / Easy to install with board hanging allowance ● High Hatch GM2 Outer frame: frame type, inner frame: joint type ● High Hatch GS Outer frame: frame type, inner frame: thin frame type ● High Hatch SD Frame type / Firmly secures the inner frame at two points ● High Hatch SE2 Frame type / Available in black ● High Hatch AT Invisible outer frame with a single joint type / Air-tight performance ● High Hatch NT Frame type / Air-tight performance ● High Hatch MAT Joint type / Air-tight performance ● High Hatch NKT Frame type / Wind pressure resistance performance, suitable for eaves ceilings ● High Hatch OD Custom sizes available / Maximum size is 1200×1500mm

• Miscellaneous metal items
• Inspection hatches, manhole covers, and ditch covers

This is a tactile stud made of SCS14 (equivalent to SUS316) that is resistant to rust. SCS14 is known for its corrosion resistance against seawater and other elements compared to SUS304. Being made of solid material, it is also highly durable, making it reliable for use in outdoor areas with high foot traffic, such as public facilities, train stations, and office buildings. ● For general flooring ● For tile carpets

• Other flooring materials

Slippery stairs are particularly dangerous for children and the elderly, but by installing this residential non-slip feature, safety can be ensured. With its strong anti-slip effect, the whole family can use the stairs with peace of mind. ▼ Available at the official online shop and Amazon♪ ・https://shop.naka-kogyo.co.jp/s40.html ・https://amzn.asia/d/8DNYP0S

• Anti-slip hardware for stairs

Slippery stairs are particularly dangerous for children and the elderly, but by installing this residential non-slip feature, safety can be ensured. With its strong anti-slip effect, the whole family can use the stairs with peace of mind. ▼ Available at the official online shop and Amazon♪ ・https://shop.naka-kogyo.co.jp/f40.html ・https://amzn.asia/d/gSwO2EL

• Anti-slip hardware for stairs

【Compatible with steel materials with a thickness of 9 to 21mm】 This is a protective material that covers the ends of H-beams to prevent injury in case someone bumps into them. It can be adjusted to match the thickness of the H-beam. It is also recommended for installation on stairs using flat bars or H-beams, in addition to parking lots. *Please avoid using it in places exposed to direct sunlight or prone to getting wet.

• Car and bicycle parking facilities

【Shock-Absorbing Protective Material】 Car stoppers are protective materials installed on the walls of parking lots, factories, and warehouses. They protect vehicles and walls from impacts caused by collisions in areas with high traffic from vehicles and carts. They are securely fixed with anchors rather than double-sided tape or adhesive, making them highly durable.

• Car and bicycle parking facilities

【Shock-Absorbing Column Protection Material】 Corner guards are protective materials installed on the corners of walls and columns in parking lots, factories, and warehouses. They protect vehicles and people from impacts in areas with frequent vehicle and cart traffic, in case of accidental collisions. They also provide solid protection for the corners of walls and columns. Unlike those fixed with double-sided tape or adhesives, this type is securely anchored, ensuring excellent durability. *Please avoid using in areas exposed to direct sunlight or prone to getting wet.*

• Car and bicycle parking facilities

You can unify the colors of handrails and wall protection materials. Wall trim materials are often installed in hallways, where handrails and wall protection materials are also present. By selecting the same color from a wide variety of options, you can create a cohesive space. Antibacterial effect. Wall trim materials are often touched by people. With the incorporation of antibacterial agents, you can keep them clean for a long time.

• Other wall materials

You can unify the colors of handrails and wall protection materials. Corner protection materials are often installed in hallways, where handrails and wall protection materials are also present. By choosing the same color from a rich variety of options, you can create a cohesive space. *Antibacterial effect available. Wall protection materials are often touched by people. With the inclusion of antibacterial agents, you can keep them clean for a long time. *Excluding Safety Corner SFT.

• Other wall materials

【Handrail and Stretcher Guard, Two Functions in One】 Handrails and stretcher guards are often installed at similar heights. This handrail and stretcher guard combines these two functions into one product. With its simple design, it functions as a handrail that doesn't look like a handrail. Of course, it also effectively serves as a wall protection material. 【Antibacterial Effect】 Since it is touched by human hands, it is infused with antibacterial agents to keep it clean for a long time. *Excluding NS-150.

• Other wall materials

【You can unify the colors of handrails and corner protectors】 Stretcher guards are often installed in hallways, where handrails and corner protectors are also present. By choosing the same color from a wide variety of options, you can create a cohesive space. 【Antibacterial effect】 Wall protection materials, which may be touched by people, are formulated with antibacterial agents, allowing for long-lasting cleanliness.

• Other wall materials

A shower hook that can be added without disassembling the existing bar! Height and angle can be easily adjusted. ● Compatible with φ30mm slide bars ● For stainless steel bars ● One-push lock release ● Up and down movement and left and right rotation possible ● Angle can be adjusted in 4 stages at 10-degree increments ● Can be added to already installed bars ▼ Available at the official online shop and Amazon♪ ・https://shop.naka-kogyo.co.jp/ssh2sv.html ・https://amzn.asia/d/5hsYsNi

• Bathroom, shower, washbasin and toilet equipment

【High-end model with a focus on color, design, and materials】 Inspired by the colors of the three major types of traditional wood, the deep black of ebony and the reddish hue of rosewood, we have expressed a luxurious texture that feels substantial and shines when polished using resin. Additionally, with consideration for the environment, we have used biomass materials for the resin cap. When installed alongside the corridor and staircase handrail "Prime Lane," it allows for a unified design of the handrails. 【Attention to the cross-section of the cap】 The surface shape that touches the palm is flat, so the orientation of the cap differs between vertical and horizontal specifications. Please take note when placing your order. ● Antiviral effect ● Antibacterial effect ● Biomass mark obtained (cap section)

• handrail

A lineup for I-type, L-type, corner for outward corners, corner for inward corners, and V-type to match actions in the toilet and bathroom. ● A wide variety of shapes ● Antibacterial effect available

• Bathroom, shower, washbasin and toilet equipment

● Equipped with a dimpled texture for a non-slip grip even with wet hands ● Antibacterial effect ● Antiviral effect (excluding No.00 White) ● Better Living certified high-quality housing component "BL certified product"

• Bathroom, shower, washbasin and toilet equipment

Are you troubled by cold metal handrails in winter and hot ones in summer? Metal handrails, such as stainless steel, located outdoors become cold in winter and hot in summer. Handrail covers can be installed over existing metal handrails to reduce discomfort when touching them. Add antiviral properties to your existing handrails! Not only can they be installed on metal handrails, but also on resin and wooden handrails. You can easily transform your existing handrails into ones with antiviral properties. Recommended for repairing rusty handrails Old and rusty metal handrails not only deteriorate in appearance but also affect user safety and comfort. Handrail covers are products that allow for the repair of handrails simply by installing a resin cover over the existing handrail. By attaching a new cover, you can restore its aesthetic appeal and achieve a comfortable feel. *For repairs to the posts, please consult your sales representative separately. *Outdoor use requires regular and proper maintenance. Please refer to the instruction manual for details. ● Antibacterial properties ● Antiviral properties (excluding some types) ● Straight sections only (not suitable for bends)

• handrail

The handrail cap can be adjusted at an angle of 0° to 45°, allowing it to be tailored to the slope. The handrail cap can be adjusted up and down by 35mm each, making it possible to set it to a user-friendly height after installation. ● Ideal for approaches to entrances with steps or ramps ● Post type ● Antibacterial effect ● Made to order

• handrail

【Can be bent to fit the site, such as stairs】 The main body of the Raku Raku handrail can be bent with your hands and knees, but those with weak knees should be careful as there is a risk of injury. If you have knee pain, please protect your knees with a towel or similar item while working. Additionally, when bending, you can use a spring bender (sold separately) inserted into the pipe core of the handrail body as an auxiliary tool to achieve a clean bend while maintaining the shape of the handrail body. 【Wood grain color】 By incorporating wood powder, the resin handrail gains the texture of wood. It has a smooth feel that is not typical of resin. ● After installation, it achieves strength that can be used safely. ● Antibacterial properties are included.

• handrail

【High-end model with a focus on color, design, and materials】 The three major types of precious woods known as "rosewood (shitan)," "ebony (kokutan)," and "ironwood (tagayasan)" have been used for architecture, furniture, and musical instruments for a long time. Among them, the deep black of ebony and the reddish color of rosewood inspired the design, and the luxurious texture that conveys weight and shines when polished has been expressed using resin. 【Use of biomass materials】 Prime Lane uses biomass materials for the resin cap part and has obtained the biomass mark. The biomass mark is a symbol issued by the Japan Organic Resources Association, indicating that the product utilizes biologically derived resources (biomass) and conforms to laws, standards, and regulations related to quality and safety. 【Recommended for open spaces】 With its calm color and simple bracket design, Prime Lane is also recommended for open spaces that offer a sense of openness. ● Antibacterial effect ● Antiviral effect ● Biomass mark obtained (cap part) ● Made to order

• handrail

For outdoor use, it is recommended to install resin handrails that are specifically designed for outdoor conditions. Since outdoor handrails are affected by sunlight and outside air, resin-coated handrails that do not easily become hot in summer and cold in winter are ideal. It is important to install weather-resistant handrails that can withstand wind, rain, temperature fluctuations, and strong ultraviolet rays. **Weather Resistance** Outdoor resin handrails have higher weather resistance, which helps prevent fading and deterioration of the handrail surface due to prolonged use. They pass the Super UV Tester for 1000 hours (equivalent to 10,000 hours on the Sunshine Weather Meter) with excellent weather resistance. Our conventional products pass the Sunshine Weather Meter for 5000 hours, so the Grahan (from July 2019) and Grawood (from January 2022) have twice the weather resistance of conventional products.

• handrail

【Continuous handrail designed for ease of grip】 When using a handrail, the actions of "gripping" and "sliding" are involved, so a continuous handrail that is easy to grip and slide is optimal. The brackets that support the gripping part are designed to support from below, making them user-friendly and safe. This design minimizes contact with the fingers, allowing for a firm grip on the handrail, and does not obstruct when sliding. A handrail with a slim joint where the brackets are received has a shape close to circular, which reduces discomfort when gripped and makes it easier to use, thus providing a safer handrail. ● Antibacterial effect ● Antiviral effect

• handrail

【Environmentally Friendly Room Temperature Installation Handrail】 Conventional resin-coated handrails required heating the handrail cap during installation. This heating process uses hot water and other high-temperature sources, requiring a significant amount of electricity and water. "Vinyl Lane e" eliminates the need to heat the handrail cap during installation, allowing it to fit onto the handrail support at room temperature, thereby reducing CO2 emissions. 【Equivalent to the Daily Electricity Consumption of a Typical Household】 Compared to our conventional products, installing this handrail saves approximately 10.5 kWh (about 4.28 kg of CO2 emissions) per 100 meters. This is equivalent to the daily electricity consumption of a typical household. *Reference: Ministry of the Environment "Summary of CO2 Emission Statistics for the Household Sector for Fiscal Year 2023 (Preliminary Data) October 2024"* ● Antibacterial effect ● Antiviral effect ● Room temperature installation possible

• handrail

For individuals with physical disabilities who require assistance, there may be cases where it is difficult to maintain a seated position on the toilet during defecation, leading to slipping or falling. In such cases, the caregiver needs to support the body throughout the entire process from defecation to cleaning the buttocks, which can result in mental strain for the user and physical strain for the caregiver. The ZS-1 features cushions arranged around the upper body to prevent tipping forward, backward, or sideways, and it has an angle-adjustable frame that allows for the creation of an appropriate angle, contributing to independent toilet use and reducing the caregiver's burden. *This device does not restrain or completely immobilize the body, so it is not suitable for bedridden individuals or those with unpredictable behavior due to dementia. Caregivers are also requested to remain present and supervise the user.* ● Designed for ease of use for both the user and the caregiver ● Made to order

• Bathroom, shower, washbasin and toilet equipment
• Welfare and medical equipment

We want elderly individuals with weakened muscle strength and those with physical disabilities to use the restroom with peace of mind. This is a new support handrail developed through research on the movements of users and caregivers within the restroom. The standing support stabilizes the body by allowing users to lean against it. 【2022 Ergonomics Good Practice Award Grand Prize】 The "Rest Hand RS-1 K Type/Y Type (Standing Support)," co-developed by Professor Naoko Kunisawa (Saitama Prefectural University) and the Medical Cooperative Saitama "Community and Health Research Institute," along with our company, received the Grand Prize at the 2022 Japan Ergonomics Society Good Practice Awards. ● Supports all movements within the restroom ● User-friendly design for both users and caregivers ● Optional knee collapse prevention cushion available

• Bathroom, shower, washbasin and toilet equipment
• Welfare and medical equipment

【Maintaining Posture and Reducing Burden】 We offer a variety of products including a flip-up handrail that supports a forward-leaning posture, a flip-up armrest that supports a seated position, and a backrest that stabilizes posture when sitting. They are cushioned and provide a gentle user experience. The burden on users, including caregivers, can also be reduced. 【Front Handrail】 Installed in front of the toilet, it helps maintain a posture that makes elimination easier. When not in use, it can be flipped up or rotated to the side for storage. 【Flip-Up Handrail】 Used as an armrest. When not in use, it can be flipped up for storage. 【For Seated Posture】 Maintains posture with flip-up armrests and backrests.

• Bathroom, shower, washbasin and toilet equipment
• Welfare and medical equipment

This is a stylish handrail designed for public toilet spaces that require attention to detail. ● Antibacterial properties ● Antiviral properties ● Recommended for toilet spaces ● Custom dimensions and shapes can be produced ● Made to order 【Ergonomically selected oval-shaped handrail】 For the action of "gripping" when using the assistive handrail, an oval-shaped handrail with dimensions of 40×32mm is recommended for ease of grip. It allows for a firmer grip compared to round handrails. 【Winner of the 2019 Good Design Award】 The vertically adjustable handrail OV-CM700H won the 2019 Good Design Award. 【Handrail colors available in solid and bi-color (two-tone) options】 The handrail can be made in a two-tone color scheme of white and black. Instead of painting it later, the resin material is colored beforehand and molded as a single piece, ensuring that the color remains beautiful over time. 【Different washer shapes for high-strength walls and general walls】 The washer for high-strength walls is designed to be smaller compared to that for general walls. For more details, please refer to the related links.

• Bathroom, shower, washbasin and toilet equipment

【Standard Toilet Surround Handrail】 Recommended for around the toilet, this is a resin-made assistive handrail with a diameter of φ34mm. It aids in maintaining posture and assists with the actions of standing and sitting in the toilet or bathroom. ● Antibacterial effect ● Antiviral effect (except for some types) ● Custom dimensions and shapes can also be manufactured.

• Bathroom, shower, washbasin and toilet equipment

This is a convenient gadget that transforms an indoor door (swing door) with a lever handle into a push-button type, making it easier to open the door. It allows individuals with conditions or reduced muscle strength who cannot move their hands or fingers freely, as well as those whose hands are occupied with carrying items, to smoothly open and close the door. Additionally, when opening the door towards oneself, it is necessary to pull the lever handle towards the body, but by installing the door opener, the door opens slowly with a gentle motion. ▼ Available for purchase at the official online shop and Amazon♪ ・https://shop.naka-kogyo.co.jp/osutopass.html ・https://www.amazon.co.jp/dp/B0D5CVGZ9V/

• Grip ball/lever handle

"UD Escape" is a descent-type evacuation device that has further evolved the traditional escape ladder. Operation is simple. By following three steps: "Open the hatch," "Extend the handle," and "Step on the lock pedal," smooth evacuation is achieved. Even those who have previously been unable to use an escape ladder can use it with confidence. It is also suitable for the elderly, those with injuries to their limbs, and for evacuating with infants and children. 【Features】 ■ Can be used during power outages as it requires no electricity ■ Smooth evacuation achieved through easy operation ■ Designed with consideration for vulnerable evacuees ■ Awarded the 2015 Annual Grand Prize by TV Tokyo's World Business Satellite "Tore-tama" *For more details, please refer to the catalog or feel free to contact us.

• Lifts for the disabled
• Transportation System
• Other elevators and transport systems

The stainless steel handrail has built-in LED lighting. You can choose the brightness and uniformity of the light according to your preferred lighting style. Additionally, while maintaining continuity in the handrail itself, you can embed LED lighting only in the areas you want to illuminate. 【Features】 ■ Two types of stainless steel rails: φ38mm and φ42.7mm ■ Compatible with wall-mounted, glass wall-mounted, and post installations ■ Rich variety of light distribution options ■ Suitable for both indoor and outdoor use For more details, please contact us.

• Privacy louvers and louver shutters
• Unit Products
• Unit and other construction

The Walkline is a continuous handrail that features a "curved" shape that fits comfortably in the hand, making it easy to grip. It has no brackets, and the entire handrail is in contact with the wall. By reducing the number of components compared to conventional products, it allows for simplified installation processes. Additionally, when installed on studs (at 455mm pitch), there is no need for reinforcement or blocking, making it possible to install the Walkline later during renovation work in single-family homes. 【Features】 - A continuous handrail with a comfortable curve that is easy to grip - No brackets, with the entire handrail in contact with the wall - Corner materials for external corners are also available - Fewer components than conventional products, simplifying the installation process - No need for reinforcement or blocking when installed on studs For more details, please contact us.

• Synthetic Resin Plywood
• Privacy louvers and louver shutters

【Features】 - All stainless steel case. - It has an auto child lock that activates automatically when the lid is closed, making it safe for households with small children.

• Metalwork

【Features】 ○ The case is made entirely of stainless steel and incorporates a steel ladder. ○ The ladder is designed for safety with minimal swaying; it is usually stored in the case but can be deployed in one motion for safe evacuation to the lower floor when in use. ○ It is equipped with an automatic child lock that engages when the top cover is closed, providing peace of mind for families with small children.

• Metalwork