{"id":4892,"date":"2026-10-22T12:49:26","date_gmt":"2026-10-22T04:49:26","guid":{"rendered":"https:\/\/www.ccompressor.com\/?post_type=product&p=4892"},"modified":"2026-10-22T13:54:00","modified_gmt":"2026-10-22T05:54:00","slug":"atlas-copco-ga-55-ff-55%e2%81%ba-oil-injected-air-compressor","status":"publish","type":"product","link":"https:\/\/www.ccompressor.com\/pt\/product\/atlas-copco-ga-55-ff-55%e2%81%ba-oil-injected-air-compressor\/","title":{"rendered":"Atlas Copco GA 55 (FF 55\u207a) Oil-injected Air Compressor"},"content":{"rendered":"

The Atlas Copco GA 55 is the 55 kW fixed speed oil-injected screw compressor in the GA 30+-90 series, carrying 75 hp of installed motor power. Two branches share the platform: the GA 55 itself and the GA 55+ build with its larger element, each delivered either as a Pack or as a Full Feature unit with the dryer factory fitted. Pressure versions cover 7.5, 8.5, 10, and 13 bar at 50 Hz, while 60 Hz plants select among 100, 125, 150, and 175 psig nameplates. Every figure from the official tables appears below, so a buyer can match branch and pressure version to the duty before requesting a quotation.<\/p>\n

Delivery is a single pre-assembled package: screw element, gear transmission, coolers, oil system, and the Elektronikon controller are tested together on one base frame. The machine only needs a level floor, power, and an air outlet to start producing.<\/p>\n

Especifica\u00e7\u00f5es t\u00e9cnicas<\/h2>\n

Capacity follows ISO 1217, Annex C, Edition 4:2009, with FAD referenced to 7 bar on the 7.5 bar build, 8 bar on the 8.5 bar build, 9.5 bar on the 10 bar build, and 12.5 bar on the 13 bar build.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n
Modelo<\/th>\nPress\u00e3o de servi\u00e7o (bar(e))<\/th>\npsig<\/th>\nCapacidade FAD l\/s<\/th>\nm\u00b3\/min<\/th>\ncfm<\/th>\nPot\u00eancia do motor instalado (kW)<\/th>\nRu\u00eddo em dB(A)<\/th>\nPeso da embalagem em kg<\/th>\nPeso com todos os equipamentos: kg<\/th>\n<\/tr>\n
GA 55 \u2013 7.5 bar<\/td>\n7.5<\/td>\n109<\/td>\n179<\/td>\n10.7<\/td>\n378<\/td>\n55<\/td>\n71<\/td>\n1360<\/td>\n1685<\/td>\n<\/tr>\n
GA 55 \u2013 8.5 bar<\/td>\n8.5<\/td>\n123<\/td>\n171<\/td>\n10.2<\/td>\n362<\/td>\n55<\/td>\n71<\/td>\n1360<\/td>\n1685<\/td>\n<\/tr>\n
GA 55 \u2013 10 bar<\/td>\n10<\/td>\n145<\/td>\n152<\/td>\n9.1<\/td>\n321<\/td>\n55<\/td>\n71<\/td>\n1360<\/td>\n1685<\/td>\n<\/tr>\n
GA 55 \u2013 13 bar<\/td>\n13<\/td>\n189<\/td>\n136<\/td>\n8.1<\/td>\n287<\/td>\n55<\/td>\n71<\/td>\n1360<\/td>\n1685<\/td>\n<\/tr>\n
GA 55+ \u2013 7.5 bar<\/td>\n7.5<\/td>\n109<\/td>\n191<\/td>\n11.5<\/td>\n405<\/td>\n55<\/td>\n69<\/td>\n1365<\/td>\n1690<\/td>\n<\/tr>\n
GA 55+ \u2013 8.5 bar<\/td>\n8.5<\/td>\n123<\/td>\n181<\/td>\n10.8<\/td>\n383<\/td>\n55<\/td>\n69<\/td>\n1365<\/td>\n1690<\/td>\n<\/tr>\n
GA 55+ \u2013 10 bar<\/td>\n10<\/td>\n145<\/td>\n167<\/td>\n10.0<\/td>\n353<\/td>\n55<\/td>\n69<\/td>\n1365<\/td>\n1690<\/td>\n<\/tr>\n
GA 55+ \u2013 13 bar<\/td>\n13<\/td>\n189<\/td>\n139<\/td>\n8.3<\/td>\n294<\/td>\n55<\/td>\n69<\/td>\n1365<\/td>\n1690<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Every version draws on the same 55 kW (75 hp) motor. The Pack tips the scale at 1360 kg (2998 lb) and the Full Feature build at 1685 kg (3715 lb), while the plus branch adds five kilograms at each stage. Sound readings are taken at the work station according to ISO 2151 and ISO 9614, with a 3 dB(A) uncertainty.<\/p>\n

60 Hz Versions<\/h2>\n

For 60 Hz markets the same two branches appear under psig nameplates, measured per ISO 1217 with the footnotes and reference conditions of the 50 Hz tables.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n
Modelo<\/th>\npsig<\/th>\nbarra(e)<\/th>\nCapacidade FAD l\/s<\/th>\nm\u00b3\/min<\/th>\ncfm<\/th>\nPot\u00eancia do motor instalado (kW)<\/th>\nRu\u00eddo em dB(A)<\/th>\nPeso da embalagem em kg<\/th>\nPeso com todos os equipamentos: kg<\/th>\n<\/tr>\n
GA 55 \u2013 100 psig<\/td>\n100<\/td>\n7.4<\/td>\n182<\/td>\n10.9<\/td>\n385<\/td>\n55<\/td>\n71<\/td>\n1360<\/td>\n1685<\/td>\n<\/tr>\n
GA 55 \u2013 125 psig<\/td>\n125<\/td>\n9.1<\/td>\n167<\/td>\n10.0<\/td>\n354<\/td>\n55<\/td>\n71<\/td>\n1360<\/td>\n1685<\/td>\n<\/tr>\n
GA 55 \u2013 150 psig<\/td>\n150<\/td>\n10.8<\/td>\n156<\/td>\n9.4<\/td>\n331<\/td>\n55<\/td>\n71<\/td>\n1360<\/td>\n1685<\/td>\n<\/tr>\n
GA 55 \u2013 175 psig<\/td>\n175<\/td>\n12.5<\/td>\n143<\/td>\n8.6<\/td>\n304<\/td>\n55<\/td>\n71<\/td>\n1360<\/td>\n1685<\/td>\n<\/tr>\n
GA 55+ \u2013 100 psig<\/td>\n100<\/td>\n7.4<\/td>\n193<\/td>\n11.6<\/td>\n409<\/td>\n55<\/td>\n69<\/td>\n1365<\/td>\n1690<\/td>\n<\/tr>\n
GA 55+ \u2013 125 psig<\/td>\n125<\/td>\n9.1<\/td>\n180<\/td>\n10.8<\/td>\n381<\/td>\n55<\/td>\n69<\/td>\n1365<\/td>\n1690<\/td>\n<\/tr>\n
GA 55+ \u2013 150 psig<\/td>\n150<\/td>\n10.8<\/td>\n163<\/td>\n9.8<\/td>\n346<\/td>\n55<\/td>\n69<\/td>\n1365<\/td>\n1690<\/td>\n<\/tr>\n
GA 55+ \u2013 175 psig<\/td>\n175<\/td>\n12.5<\/td>\n144<\/td>\n8.6<\/td>\n305<\/td>\n55<\/td>\n69<\/td>\n1365<\/td>\n1690<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Motor rating, sound level, and weights are identical across the two supply frequencies, which keeps spare parts lists and installation drawings interchangeable for groups that operate plants on both sides of the Atlantic.<\/p>\n

\"Atlas
Atlas Copco GA 55 FF (2)<\/figcaption><\/figure>\n

The GA 55+ Branch<\/h2>\n

Behind the unchanged 55 kW (75 hp) motor rating, the plus branch mounts a larger compression element that turns slower for the same output. Flow climbs from 179 to 191 l\/s (378 to 405 cfm) on the 7.5 bar build, and the sound pressure level drops two decibels to 69 dB(A). Plants that draw near-full load around the clock get the widest flow band of the 55 kW class from this build.<\/p>\n

Service intervals stretch to 8000 hours on the plus branch, supported by Smart Temperature Control that watches the oil circuit with intelligent sensors and keeps it in its ideal window through the seasons. Fewer planned stops per year are the practical result for continuous operations.<\/p>\n

\"Atlas
Atlas Copco GA 55\u207a FF (1)<\/figcaption><\/figure>\n

Pack and Full Feature Builds<\/h2>\n

Each branch is offered as a Pack or as a Full Feature unit. The Pack occupies 1680 \u00d7 1221 \u00d7 1980 mm (depth \u00d7 width \u00d7 height) and rolls into position without a special foundation. Choosing Full Feature extends the depth to 2525 mm, because the integrated refrigerant dryer, its filtration, and the electronic condensate drain ride on the same frame, wired and piped before they leave the factory. The dryer holds a pressure dewpoint of 2\u00b0C to 3\u00b0C (36\u00b0F to 37\u00b0F) at reference conditions.<\/p>\n

Width and height never change between the two builds, so a Pack installation can move to Full Feature later by extending the room along one axis only.<\/p>\n

Gear Transmission and Oil Circuit<\/h2>\n

An enclosed gear train connects the motor to the screw element, holding the designed speed ratio without belts to tension or couplings to align. One synthetic oil circuit lubricates the bearings, seals the element, and carries compression heat to the coolers in a single pass, which keeps the oil system compact and easy to service.<\/p>\n

Cooling air sweeps across both the oil cooler and the aftercooler inside a canopy lined with acoustic material on every panel. Daily checks and routine service points gather behind panels on one side at standing height, so the unit can be placed against a wall or lined up in a row.<\/p>\n

\"Atlas
Atlas Copco GA 55\u207a FF (2)<\/figcaption><\/figure>\n

Where the GA 55 Fits<\/h2>\n

The 7.5 bar and 8.5 bar builds serve textiles, blowing, and general plant air; the 10 bar build matches assembly lines and packaging; the 13 bar build carries injection molding and high-pressure tool networks. Fixed speed logic rewards sites with level consumption, while operations whose demand swings between shifts should compare the variable speed route, for example the Compressor de ar com inje\u00e7\u00e3o de \u00f3leo Atlas Copco GA 250<\/a> range and the GA 55 VSD of the same series.<\/p>\n

\"Atlas
Atlas Copco GA 55 FF (3)<\/figcaption><\/figure>\n

GA 55 FAQ<\/h2>\n

How do the two branches differ?<\/strong><\/p>\n

The plus branch fits a bigger element behind the same 55 kW (75 hp) motor. Output rises from 179 to 191 l\/s on the 7.5 bar build, sound falls from 71 to 69 dB(A), and the service interval extends to 8000 hours.<\/p>\n

Which pressure version fits my plant?<\/strong><\/p>\n

Pick the lowest version that covers the highest pressure consumer on site: 7.5, 8.5, 10, or 13 bar at 50 Hz, or 100, 125, 150, and 175 psig at 60 Hz.<\/p>\n

How much air does the family produce?<\/strong><\/p>\n

Across branches and pressure versions the 50 Hz range spans 136 to 191 l\/s (287 to 405 cfm), referenced to ISO 1217, Annex C.<\/p>\n

What does Full Feature include?<\/strong><\/p>\n

An integrated refrigerant dryer, filtration, and an electronic condensate drain, factory assembled on the same frame. Depth grows from 1680 to 2525 mm while the other two dimensions stay put.<\/p>\n

What does the package weigh?<\/strong><\/p>\n

The Pack weighs 1360 kg (2998 lb) and the Full Feature build 1685 kg (3715 lb); the plus builds add five kilograms at each stage.<\/p>\n

Do 50 Hz and 60 Hz units share components?<\/strong><\/p>\n

Motor ratings, noise levels, weights, and the footprint are the same, so drawings and spare parts lists carry over between regions even though each machine is wound for its own supply.<\/p>","protected":false},"excerpt":{"rendered":"

The 55 kW class covers a wide span of factory duties, and the branch choice decides how much air you actually get per kilowatt. Reply with the model and the working pressure your line runs at \u2014 Sekes will confirm the matching branch and Pack or Full Feature build, then quote the Atlas Copco GA 55 for your site.<\/strong><\/p>","protected":false},"featured_media":4886,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"parts-accessories":[],"service-intervals":[],"product_brand":[43],"product_cat":[102],"product_tag":[130,46],"class_list":["post-4892","product","type-product","status-publish","has-post-thumbnail","product_brand-atlas-copco","product_cat-oil-injected-air-compressors","product_tag-ga-gavsd-series","product_tag-screw-air-compressors","first","instock","taxable","shipping-taxable","purchasable","product-type-simple"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.ccompressor.com\/pt\/wp-json\/wp\/v2\/product\/4892","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ccompressor.com\/pt\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.ccompressor.com\/pt\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ccompressor.com\/pt\/wp-json\/wp\/v2\/comments?post=4892"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ccompressor.com\/pt\/wp-json\/wp\/v2\/media\/4886"}],"wp:attachment":[{"href":"https:\/\/www.ccompressor.com\/pt\/wp-json\/wp\/v2\/media?parent=4892"}],"wp:term":[{"taxonomy":"parts-accessories","embeddable":true,"href":"https:\/\/www.ccompressor.com\/pt\/wp-json\/wp\/v2\/parts-accessories?post=4892"},{"taxonomy":"service-intervals","embeddable":true,"href":"https:\/\/www.ccompressor.com\/pt\/wp-json\/wp\/v2\/service-intervals?post=4892"},{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.ccompressor.com\/pt\/wp-json\/wp\/v2\/product_brand?post=4892"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.ccompressor.com\/pt\/wp-json\/wp\/v2\/product_cat?post=4892"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.ccompressor.com\/pt\/wp-json\/wp\/v2\/product_tag?post=4892"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}