Alluser C4 – Double Cylindrical Security Portal

The Alluser C4 is a dual cylindrical security portal designed to deliver high-security pedestrian access control in compact environments, ensuring robust physical protection and maximum throughput. Its overall width of 1750 mm houses two independently operated cabins, each with a 600 mm clear entrance and an 820 mm internal diameter, offering optimal efficiency without compromising on security.

Thanks to its compact footprint, modularity, and advanced access control technologies, the C4 is ideal for 24/7 applications in gyms, corporate buildings, co-working spaces, and automated facilities requiring unmanned and secure entry.

It can be equipped with the APD (Anti-Piggybacking Detection) system — an ultrasonic technology that prevents tailgating by verifying single-person occupancy inside each cabin.

Specification

Dimensions:
Overall Width: 1750 mm (dual cabin)
Cabin Diameter: 820 mm
Clear Entrance per Cabin: 600 mm
Internal Height: 2048 mm
External Height:
2382 mm S version
2320 mm R version
Standard features:
RAL powder-coated outer finish (pearl colours optional)
LED lighting system (3000 K, 50,000-hour lifespan)
Infrared presence and safety sensors
Curved sliding doors, fail secure
Emergency unlocking
LED traffic lights on both sides
Alluser interlocking motherboard with APS software
Glazing options:
P2A standard glass (EN 356)
P4A / P6B anti-vandal (EN 356)
BR3 and BR4 bullet-resistant glass (EN 1063)
Available Options:
APD: Anti-Piggybacking Device (ultrasonic sensor system)
Brushed or polished steel / aluminium finishes
Web LAN control module
Additional control panel and service mode key switch
Pressure mat, 2-zone contact mat, reed tamper sensor
Rescue push-button (to safely reopen last door)
Available versions:
C4-S: Welded body
C4-R: Raised base version for surface mounting
C4-K: Modular kit version for on-site assembly
Typical applications:
24/7 fitness centers and gyms
Corporate offices and co-working hubs
Automated and unmanned entry points
R&D and pharma facilities
Sensitive infrastructures and high-security access points

Technical specification

Unique ref.alluser-c4-double-cylindrical-security-portal
Product familyCylindrical Series
Product groupSecurity Portals
TypeObject (single object)
Date of publishing2025-08-06
Edition number1
Height (mm)2320
Width (mm)1750
Depth (mm)988

Links

Product urlhttps://www.alluserindustrie.com/cylindrical/C4/
Technical descriptionhttps://www.alluserindustrie.com/wp-content/uploads/2018/10/Alluser_C4R_2018_R1.pdf

Designed inItaly
Manufactured inItaly

Classification

BIMobject CategoryDoors - Security

Region availability

Europe	Asia	North America	Africa	South America	Oceania
Åland Islands	Afghanistan	Anguilla	Algeria	Argentina	American Samoa
Albania	Armenia	Antigua and Barbuda	Angola	Bolivia	Australia
Andorra	Azerbaijan	Aruba	Benin	Brazil	Cook Islands
Austria	Bahrain	Barbados	Botswana	Chile	Federated States of Micronesia
Belarus	Bangladesh	Belize	Burkina Faso	Colombia	Fiji
Belgium	Bhutan	Bermuda	Burundi	Ecuador	French Polynesia
Bosnia and Herzegovina	British Indian Ocean Territory	British Virgin Islands	Cameroon	Falkland Islands (Islas Malvinas)	Guam
Bulgaria	Brunei	Canada	Cape Verde	French Guiana	Kiribati
Croatia	Cambodia	Caribbean Netherlands	Central African Republic	Guyana	Marshall Islands
Cyprus	China	Cayman Islands	Chad	Paraguay	Nauru
Czech Republic	Christmas Island	Collectivity of Saint Martin	Comoros	Peru	New Caledonia
Denmark	Cocos (Keeling) Islands	Costa Rica	Côte d'Ivoire	Suriname	New Zealand
Estonia	Georgia	Cuba	Democratic Republic of the Congo	Uruguay	Niue
Faroe Islands	Hong Kong	Curaçao	Djibouti	Venezuela	Norfolk Island
Finland	India	Dominica	Egypt		Northern Mariana Islands
France	Indonesia	Dominican Republic	Equatorial Guinea		Palau
Germany	Iran	El Salvador	Eritrea		Papua New Guinea
Gibraltar	Iraq	Greenland	Eswatini		Pitcairn Islands
Greece	Israel	Grenada	Ethiopia		Samoa
Guernsey	Japan	Guadeloupe	Gabon		Solomon Islands
Hungary	Jordan	Guatemala	Ghana		Timor-Leste
Iceland	Kazakhstan	Haiti	Guinea		Tokelau
Ireland	Kuwait	Honduras	Guinea-Bissau		Tonga
Isle of Man	Kyrgyzstan	Jamaica	Kenya		Tuvalu
Italy	Laos	Martinique	Lesotho		United States Minor Outlying Islands
Jersey	Lebanon	Mexico	Liberia		Vanuatu
Latvia	Macau	Montserrat	Libya		Wallis and Futuna
Liechtenstein	Malaysia	Nicaragua	Madagascar
Lithuania	Maldives	Panama	Malawi
Luxembourg	Mongolia	Puerto Rico	Mali
Malta	Myanmar (Burma)	Saint Kitts and Nevis	Mauritania
Moldova	Nepal	Saint Lucia	Mauritius
Monaco	North Korea	Saint Pierre and Miquelon	Mayotte
Montenegro	Oman	Saint Vincent and the Grenadines	Morocco
Netherlands	Pakistan	Saint-Barthélemy	Mozambique
North Macedonia	Palestine	Sint Maarten	Namibia
Norway	Philippines	The Bahamas	Niger
Poland	Qatar	Trinidad and Tobago	Nigeria
Portugal	Saudi Arabia	Turks and Caicos Islands	Republic of the Congo
Romania	Singapore	U.S. Virgin Islands	Reunion
Russia	South Korea	United States	Rwanda
San Marino	Sri Lanka		Saint Helena
Serbia	Syria		São Tomé and Príncipe
Slovakia	Taiwan		Senegal
Slovenia	Tajikistan		Seychelles
Spain	Thailand		Sierra Leone
Svalbard and Jan Mayen	Türkiye		Somalia
Sweden	Turkmenistan		South Africa
Switzerland	United Arab Emirates		South Sudan
Ukraine	Uzbekistan		Sudan
United Kingdom	Vietnam		Tanzania
Vatican City	Yemen		The Gambia
			Togo
			Tunisia
			Uganda
			Western Sahara
			Zambia
			Zimbabwe