Original NICE ROA81 30×30×1000 mm Weld-On M6 Gear Rack
The NICE ROA81 is an original NICE heavy-duty galvanized steel gear rack designed for compatible automatic sliding gate systems equipped with the NICE RUA12 Module 6 pinion.
Official NICE documentation specifies ROA81 as an M6 galvanized steel rack measuring 30 × 30 × 1000 mm. The rack is designed as a weld-on type and is specifically intended for use with the NICE RUA12 12-tooth M6 pinion.
Each ROA81 section measures 1000 mm / 1 meter. Multiple rack sections can be welded along the sliding gate to cover the complete opening and closing travel.
NICE ROA81 Key Features
- Original NICE sliding gate accessory
- Model: ROA81
- Gear module: M6 / Module 6
- Dimensions: 30 × 30 × 1000 mm
- Length: 1000 mm / 1 meter
- Material: galvanized steel
- Weld-on installation
- Designed for use with NICE RUA12 pinion
- RUA12: 12-tooth Module 6 pinion
- Suitable for compatible heavy-duty sliding gate automation
- Multiple sections can be joined for longer gates
Official NICE ROA81 Technical Specifications
| Brand | NICE |
| Model | ROA81 |
| Product Type | Heavy-Duty Sliding Gate Gear Rack |
| Gear Module | M6 / Module 6 |
| Material | Galvanized Steel |
| Dimensions | 30 × 30 × 1000 mm |
| Length | 1000 mm / 1 Meter |
| Installation Type | Weld-On |
| Required Pinion | NICE RUA12 |
| RUA12 Specification | 12-Tooth, Module 6 |
| Official Factory Pack | 10 Pieces |
Important: ROA81 Is M6
The NICE ROA81 uses a Module 6 / M6 gear profile.
This is one of the most important specifications to show on your product page because most standard NICE sliding gate racks use M4.
ROA81 must only be used with a compatible M6 pinion.
NICE RUA12 Pinion
NICE specifically designed ROA81 for use with the RUA12 pinion.
Official NICE specifications identify RUA12 as:
- 12-tooth pinion
- Module 6 / M6
- Designed for use with ROA81 rack
Therefore, a clear compatibility statement for this page is:
NICE ROA81 M6 rack for sliding gate motors equipped with the NICE RUA12 12-tooth Module 6 pinion.
ROA81 vs ROA7
| Model | Official Specification |
| ROA7 | M4 galvanized steel, 22 × 22 × 1000 mm |
| ROA81 | M6 galvanized steel, 30 × 30 × 1000 mm, weld-on, for RUA12 |
ROA7 and ROA81 cannot be interchanged because the tooth modules are different.
ROA81 vs ROA8
| Model | Official Specification |
| ROA8 | M4 galvanized steel, 30 × 8 × 1000 mm, with screws and spacers |
| ROA81 | M6 galvanized steel, 30 × 30 × 1000 mm, weld-on type |
Although both products are galvanized steel NICE racks, they use different tooth modules, dimensions and installation methods.
Complete NICE Rack Comparison
| Model | Specification |
| ROA6 | M4 nylon with metal insert, 25 × 20 × 1000 mm, gates up to 500 KG |
| ROA66 | M4 reinforced nylon, 25 × 20 × 1000 mm, six fixing points, gates up to 800 KG |
| ROA7 | M4 galvanized steel, 22 × 22 × 1000 mm |
| ROA8 | M4 galvanized steel, 30 × 8 × 1000 mm, with screws and spacers |
| ROA81 | M6 galvanized steel, 30 × 30 × 1000 mm, weld-on, for RUA12 |
ROA81 Is Not a Standard M4 Rack
Do not sell ROA81 as a general replacement for ROA7 or ROA8.
ROA7 and ROA8 use M4.
ROA81 uses M6.
The motor pinion and rack tooth module must match exactly.
Compatible NICE RUN Applications
ROA81 is particularly relevant to compatible NICE RUN sliding gate motors when they are equipped with the optional RUA12 M6 pinion.
NICE officially lists RUA12 and ROA81 together as matching accessories.
Standard RUN vs RUA12 Configuration
| RUN Configuration | Rack |
| Standard M4 Pinion | Compatible M4 rack such as ROA7 / ROA8 |
| RUA12 12-Tooth M6 Pinion | ROA81 M6 Rack |
RUN2500 Applications
For a NICE RUN2500 installation, do not automatically order ROA81 based only on the motor model.
First check the pinion fitted to the motor.
If the RUN2500 uses the standard M4 pinion, use the appropriate M4 rack.
If the motor is fitted with NICE RUA12 Module 6 pinion, use ROA81.
RUN1800 Applications
The same rule applies to compatible RUN1800 installations.
Rack selection must be based on the actual pinion configuration rather than simply the maximum motor capacity.
RUN High-Speed Applications
NICE also lists ROA81 and RUA12 among rack/pinion accessories in its sliding gate and Hi-Speed documentation.
Always verify the exact motor model, operating requirements and installed pinion before selecting M6.
Do Not Advertise ROA81 as a 4000 KG Rack
Your current page repeatedly states that this rack supports sliding gates up to 4000 KG.
NICE's official ROA81 specification does not publish a 4000 KG maximum gate-weight rating for the rack.
The official specification is:
ROA81 – M6 galvanized rack, 30 × 30 × 1000 mm, weld-on, for use with RUA12.
Therefore, remove the fixed 4000 KG rack rating.
Motor Capacity Is Not Rack Capacity
Do not transfer a motor's maximum gate capacity to the gear rack.
For example, if a sliding gate motor is rated for 2500 KG or 4000 KG, this does not automatically mean every compatible rack has an official identical weight rating.
Rack selection depends on the exact motor, pinion, gear module and installation engineering.
TUB4000 Warning
Your current product page lists NICE TUB4000 as a primary compatible motor.
Do not advertise ROA81 as the standard TUB4000 rack merely because TUB4000 is rated for gates up to 4000 KG.
ROA81's official NICE specification is tied specifically to the RUA12 M6 pinion.
For a TUB4000 installation, verify the exact motor output pinion and rack specification before supplying ROA81.
Remove THOR as Generic Compatibility
Your current page also lists NICE THOR industrial sliding gate motors.
Do not advertise ROA81 as universally compatible with THOR.
The correct rule is:
ROA81 requires a compatible Module 6 pinion. Verify the exact motor pinion before ordering.
Correct M6 Gear Matching
The M6 tooth profile of ROA81 must mesh with an M6 drive pinion.
Using an M4 pinion with ROA81 can cause:
- Incorrect tooth engagement
- Gate jumping
- Severe operating noise
- Rack tooth damage
- Pinion damage
- Gearbox overload
- Automation failure
Galvanized Steel Construction
The NICE ROA81 is manufactured from galvanized steel.
Galvanizing helps protect the steel surface against corrosion during suitable outdoor sliding gate installations.
Weld-On Installation
NICE specifically describes ROA81 as a weld-on rack.
This is different from ROA8, which is supplied with screws and spacers.
The ROA81 rack should be professionally positioned, aligned and welded to the sliding gate structure.
Professional Welding Recommended
Because the rack must remain accurately aligned with the motor pinion, welding should be carried out by an experienced gate installer or fabricator.
Poor welding or excessive heat distortion can change rack alignment and create problems during gate movement.
Correct Rack Alignment
The rack must remain straight and parallel with the gate movement throughout the complete opening and closing travel.
Check the rack against the motor pinion at multiple positions before completing all welds.
Rack-to-Pinion Clearance
The rack must not press heavily onto the motor pinion.
The sliding gate's weight must remain supported by its wheels and track system.
Maintain the clearance specified in the motor installation instructions.
Do Not Use the Pinion to Support the Gate
The drive pinion is designed to move the gate horizontally.
It should not carry the vertical weight of the sliding gate.
Joining Multiple ROA81 Sections
Multiple 1-meter ROA81 sections can be installed along longer sliding gates.
At every joint:
- Maintain continuous M6 tooth pitch
- Keep both rack sections at the same height
- Maintain correct pinion clearance
- Keep the rack parallel with gate travel
- Avoid welding distortion
Use a Matching Rack to Align the Joint
A matching M6 rack section can be temporarily positioned across the joint to help maintain correct tooth spacing before final welding.
ROA81 Installation Procedure
- Check that the sliding gate moves freely by hand.
- Install and level the sliding gate motor.
- Confirm the motor is fitted with an M6 pinion.
- For NICE RUN applications, confirm RUA12 is fitted where required.
- Release the motor for manual movement.
- Position the first ROA81 rack section over the pinion.
- Set the correct rack-to-pinion clearance.
- Tack weld the rack in position.
- Move the gate manually along the pinion.
- Check alignment throughout the first section.
- Position the next ROA81 section.
- Align the M6 tooth pitch at the joint.
- Tack weld the second section.
- Continue across the complete gate travel.
- Recheck all rack alignment.
- Complete the welding without distorting the rack.
- Recheck pinion clearance after welding.
- Test the complete gate manually before automatic operation.
Replacing an Existing 30 × 30 Rack
Do not order ROA81 based only on the existing rack measuring approximately 30 × 30 mm.
Before replacement, verify:
- Gear module is M6
- Tooth pitch matches
- Rack dimensions match
- Pinion is M6
- Existing mounting method is compatible
M6 Is More Important Than the 30 × 30 Size
Two steel racks can have similar external dimensions while using different tooth profiles.
Always confirm the gear module before ordering.
Common Heavy-Duty Rack Problems
- Damaged gear teeth
- Broken welds
- Rack misalignment
- Incorrect tooth pitch at joints
- Excessive pinion pressure
- Corrosion at damaged galvanized areas
- Gate track misalignment
- Damaged gate wheels
- Loose motor foundation
Gate Makes Knocking Noise
A regular knocking noise can indicate poor alignment at the joints between rack sections.
Inspect every joint and verify continuous M6 tooth spacing.
Gate Jumps on the Pinion
If the gate jumps during movement, immediately check:
- Rack and pinion gear module
- Rack alignment
- Pinion clearance
- Damaged rack teeth
- Damaged pinion teeth
- Gate wheel and track condition
UAE Outdoor Installation
The galvanized steel construction provides corrosion protection for suitable outdoor sliding gate installations.
Do not claim a specific UAE heat, humidity or dust certification unless NICE provides that specification for the rack.
Do Not Claim “Made in Italy” Without Stock Verification
NICE is an Italian automation manufacturer, but the country of manufacture of an individual accessory should be taken from the actual product or packaging.
Only retain Origin: Italy if your physical ROA81 stock confirms it.
Factory Pack Quantity
NICE lists ROA81 in factory packs of 10 pieces.
If you sell the rack individually, clearly state:
Price and quantity are per 1-meter ROA81 rack section.
Package Contents
- 1 × NICE ROA81 M6 Galvanized Steel Rack
- Size: 30 × 30 × 1000 mm
The NICE RUA12 M6 pinion is a separate accessory and should not be listed as included unless you physically supply it with the rack.
NICE ROA81 Heavy-Duty Steel Rack UAE
The ROA81 can be used in compatible heavy-duty sliding gate installations at:
- Factories
- Warehouses
- Industrial compounds
- Commercial facilities
- Logistics centres
- High-security entrances
- Large residential compounds
- Heavy sliding gate installations
NICE ROA81 Supply & Installation UAE
Supply, replacement, welding and professional sliding gate rack installation support is available throughout Dubai, Sharjah, Abu Dhabi, Ajman, Ras Al Khaimah, Fujairah, Umm Al Quwain and Al Ain.
Why Choose NICE ROA81?
- Original NICE rack model
- Exact ROA81 manufacturer code
- Heavy-duty M6 tooth profile
- 30 × 30 × 1000 mm dimensions
- Galvanized steel construction
- Weld-on installation
- Designed for NICE RUA12 M6 pinion
- Suitable for compatible heavy-duty sliding gate automation
Buy NICE ROA81 M6 Steel Rack UAE
Buy the NICE ROA81 M6 galvanized steel sliding gate rack in UAE for compatible heavy-duty automatic sliding gate systems.
Each ROA81 section measures 30 × 30 × 1000 mm and is designed as a weld-on M6 rack for use with the NICE RUA12 12-tooth Module 6 pinion.
Before ordering, confirm that the motor is fitted with a compatible M6 pinion. Do not select ROA81 for a standard M4 pinion.
Supply and professional installation support is available throughout Dubai, Sharjah, Abu Dhabi, Ajman, Al Ain, Ras Al Khaimah, Fujairah and Umm Al Quwain.
Frequently Asked Questions
What is NICE ROA81?
ROA81 is an original NICE M6 galvanized steel sliding gate rack measuring 30 × 30 × 1000 mm.
Is ROA81 M4 or M6?
ROA81 is M6 / Module 6.
What is the ROA81 size?
30 × 30 × 1000 mm.
How long is one ROA81 section?
Each section is 1000 mm / 1 meter long.
Is ROA81 a weld-on rack?
Yes. NICE officially describes ROA81 as a weld-on galvanized steel rack.
Which NICE pinion is designed for ROA81?
NICE RUA12, which is a 12-tooth Module 6 pinion.
Can I use ROA81 with a standard M4 pinion?
No. ROA81 is M6 and requires a compatible M6 pinion.
Can I use ROA81 with NICE RUN2500?
Yes, when the compatible RUN installation is equipped with the RUA12 M6 pinion. If the motor has its standard M4 pinion, use the appropriate M4 rack instead.
Is ROA81 officially rated for a 4000 KG gate?
NICE does not publish a specific 4000 KG maximum gate-weight rating in the ROA81 rack specification. Select it according to the motor, M6 pinion and installation requirements.
What is the difference between ROA8 and ROA81?
ROA8 is M4 and measures 30 × 8 × 1000 mm. ROA81 is M6 and measures 30 × 30 × 1000 mm. ROA81 is specifically designed for use with RUA12.
Can multiple ROA81 sections be joined?
Yes. Multiple 1-meter sections can be welded along the gate while maintaining correct M6 tooth alignment and pinion clearance.
Does ROA81 include RUA12?
No. RUA12 is a separate M6 pinion accessory unless your seller specifically supplies both products as a package.
Do you provide ROA81 installation in UAE?
Yes. Supply, welding, replacement and professional rack installation support is available for compatible sliding gate systems throughout the UAE.
Frequently Asked Questions
Is this NICE product suitable for UAE installation?
Yes, this NICE product is suitable for residential, commercial and industrial gate automation applications in UAE when selected according to gate size, weight and usage.
Do you provide installation support?
Yes, installation and technical support is available in Dubai, Sharjah, Abu Dhabi and other UAE locations.
Can I order this product on WhatsApp?
Yes, you can use the WhatsApp order button on this page to request price, availability and delivery details.
