Product Search

    SEARCH NOW FOR ALL YOUR BECKHOFF SOLUTIONS

    Radwell is here to supply you with all your plant floor needs.

    Servo Products / Servo Drive/Servo Control

    Radwell is not an authorized distributor, reseller or representative of the products featured on this website. All product names, trademarks, brands and logos used on this site are the property of their respective owners.

    Filter Results
    Results 201-250 of 511.
    BECKHOFF AX5103-0000-0201

    BECKHOFF

    AX5103-0000-0201

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 3A,1-AXIS DRIVE, 100-480 VACETHERCAT INTERFACEINTEGRATED MAINS FILTERHARDWARE VERSION 2.0FIRMWARE VERSION 2.060-599 HZ SPECIAL COATED BOARDS FOR TH ...
    $1,590.29 Buy Surplus As Low As $821.00
    $821.00
    Repair Yours $682.00
    BECKHOFF AX5106-0000-0010

    BECKHOFF

    AX5106-0000-0010

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 6A,
    $1,564.95 Buy Surplus As Low As $939.00
    $939.00
    Repair Yours $780.00
    BECKHOFF AX5106-0000-0201

    BECKHOFF

    AX5106-0000-0201

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 6A,1-AXIS DRIVE, 100-480 VACETHERCAT INTERFACEINTEGRATED MAINS FILTERHARDWARE VERSION 2.0FIRMWARE VERSION 2.060-599 HZ SPECIAL COATED BOARDS FOR TH ...
    $1,689.63 Buy Surplus As Low As $1,014.00
    $1,014.00
    Repair Yours $842.00
    BECKHOFF AX5106-0000-0203

    BECKHOFF

    AX5106-0000-0203

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 6A,1-AXIS DRIVE, 100-480 VACETHERCAT INTERFACEINTEGRATED MAINS FILTERHARDWARE VERSION 2.0FIRMWARE VERSION >= 2.100-599 HZ SPECIAL COATED BOARDS FOR ...
    $1,689.63 Buy Surplus As Low As $1,014.00
    $1,014.00
    Repair Yours $842.00
    BECKHOFF AX5106-0000-0210

    BECKHOFF

    AX5106-0000-0210

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 6A,1-AXIS DRIVE, 100-480 VACETHERCAT INTERFACEINTEGRATED MAINS FILTERHARDWARE VERSION 2.0FIRMWARE VERSION 2.060-833 HZ
    $1,653.81 Buy Surplus As Low As $993.00
    $993.00
    Repair Yours $825.00
    BECKHOFF AX5106-0000-0212

    BECKHOFF

    AX5106-0000-0212

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 6 A,1-AXIS DRIVE, 100-480 VACETHERCAT INTERFACEINTEGRATED MAINS FILTERHARDWARE VERSION 2.0FIRMWARE VERSION >= 2.100-833 HZ
    $1,543.55 Buy Surplus As Low As $927.00
    $927.00
    Repair Yours $770.00
    BECKHOFF AX5112-0000-0010

    BECKHOFF

    AX5112-0000-0010

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 12A,
    $1,731.57 Buy Surplus As Low As $1,039.00
    $1,039.00
    Repair Yours $863.00
    BECKHOFF AX5112-0000-0201

    BECKHOFF

    AX5112-0000-0201

    DIGITAL COMPACT SERVO DRIVE, DC-LINK VOLTAGE MAX. 875 V DC, RATED OUTPUT CURRENT (CHANNEL) 12 A, PEAK OUTPUT CURRENT (CHANNEL) 26 A, RATED SUPPLY VOLTAGE 3 X 100480 V AC 10 %
    $1,855.55 Buy Surplus As Low As $1,114.00
    $1,114.00
    Repair Yours $925.00
    BECKHOFF AX5112-0000-0203

    BECKHOFF

    AX5112-0000-0203

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 12A,1-AXIS DRIVE, 100-480 VACETHERCAT INTERFACEINTEGRATED MAINS FILTERHARDWARE VERSION 2.0FIRMWARE VERSION >= 2.100-599 HZ SPECIAL COATED BOARDS FO ...
    $1,855.55 Buy Surplus As Low As $1,114.00
    $1,114.00
    Repair Yours $925.00
    BECKHOFF AX5112-0000-0210

    BECKHOFF

    AX5112-0000-0210

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 12 AMP, 1-AXIS DRIVE, 100-480 VAC, ETHERCAT INTERFACE, INTEGRATED MAINS FILTER, HARDWARE VERSION 2.0, FIRMWARE VERSION 2.0, 60-833 HZ
    $1,849.00 Buy Surplus As Low As $1,110.00
    $1,110.00
    Repair Yours $913.00
    BECKHOFF AX2020-AS

    BECKHOFF

    AX2020-AS

    DISCONTINUED BY THE MANUFACTURER, SERVO DRIVE, 20AMP
    Buy Surplus As Low As $3,960.00
    $3,960.00
    Repair Yours $3,300.00
    BECKHOFF AX2003-B200-0000

    BECKHOFF

    AX2003-B200-0000

    SERVO DRIVE, DIGITAL COMPACT, 3 AMP, 3 PHASE, 230-480 VAC, 50/60 HZ, 2 KVA, W/ FIELDBUS-INTERFACE FOR BECKHOFF-LIGHTBUSINTEGRATED MAINS FILTER
    $3,786.00 Buy Surplus As Low As $2,272.00
    $2,272.00
    Repair Yours $1,886.00
    BECKHOFF AX2006-B200-0000

    BECKHOFF

    AX2006-B200-0000

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 6A,ROD/SSI, ANALOG INTERFACEWITH FIELDBUS-INTERFACE FOR BECKHOFF-LIGHTBUSINTEGRATED MAINS FILTERS
    $4,320.00 Buy Surplus As Low As $2,592.00
    $2,592.00
    Repair Yours $2,152.00
    BECKHOFF AX5206-0000-0000

    BECKHOFF

    AX5206-0000-0000

    SERVO DRIVE, SERIES: AX5000, 2 CHANNEL, DIGITAL, INPUT - 1 PHASE 100-240 V AC / 3 PHASE 100-480VAC, 50/60 HZ, INPUT - 1 PHASE 17.1 AMP / 3 PHASE 13.2 AMP, RATED CURRENT - 2 X 6 AMP, MAX. AMB ...
    $2,589.00 Buy Surplus As Low As $1,554.00
    $1,554.00
    Repair Yours $1,253.00
    BECKHOFF AX2003-B200-0001

    BECKHOFF

    AX2003-B200-0001

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 3A,OPTION-AS- RESTART LOCK (PERSONALLY SAFE FUNCTION)ROD/SSI, ANALOG INTERFACE,WITH FIELDBUS-INTERFACE FOR BECKHOFF-LIGHTBUSINTEGRATED MAINS FILTER ...
    $4,121.00 Buy Surplus As Low As $2,473.00
    $2,473.00
    Repair Yours $2,053.00
    BECKHOFF AX2006-B200-0001

    BECKHOFF

    AX2006-B200-0001

    DISCONTINUED BY MANUFACTURER, DIGITAL SERVO AMPLIFIER, 6A, ROD/SSI, ANALOG INTERFACE, W/ FIELDBUS-INTERFACE, LIGHTBUS INTEGRATED
    Buy Surplus As Low As $7,380.00
    $7,380.00
    Repair Yours $2,400.00
    BECKHOFF AX2006-0000-0000

    BECKHOFF

    AX2006-0000-0000

    DISCONTINUED BY MANUFACTURER, DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 6 A, 230-480V, ROD/SSI, ANALOG INTERFACE, CAN INTERFACE, INTEGRATED MAINS FILTER
    Buy Surplus As Low As $2,178.00
    $2,178.00
    Repair Yours $1,808.00
    BECKHOFF AX2003-B110-0000

    BECKHOFF

    AX2003-B110-0000

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 3A,ROD/SSI, ANALOG INTERFACE,WITH FIELDBUS-INTERFACE FOR ETHERCATINTEGRATED MAINS FILTER
    $3,575.00 Buy Surplus As Low As $2,145.00
    $2,145.00
    Repair Yours $1,781.00
    BECKHOFF AX2003-B110-0001

    BECKHOFF

    AX2003-B110-0001

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 3A,OPTION-AS- RESTART LOCK (PERSONALLY SAFE FUNCTION)ROD/SSI, ANALOG INTERFACE,WITH FIELDBUS-INTERFACE FOR ETHERCATINTEGRATED MAINS FILTERRESTART L ...
    $3,911.00 Buy Surplus As Low As $2,347.00
    $2,347.00
    Repair Yours $1,949.00
    BECKHOFF AX2010-B110-0001

    BECKHOFF

    AX2010-B110-0001

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 10A,OPTION-AS- RESTART LOCK (PERSONALLY SAFE FUNCTION)ROD/SSI, ANALOG INTERFACE,WITH FIELDBUS-INTERFACE FOR ETHERCATINTEGRATED MAINS FILTERRESTART ...
    $5,204.00 Buy Surplus As Low As $3,123.00
    $3,123.00
    Repair Yours $2,593.00
    BECKHOFF AX2503-B200

    BECKHOFF

    AX2503-B200

    SERVO DRIVE
    $2,321.00 Buy Surplus As Low As $1,161.00
    $1,161.00
    Repair Yours $1,103.00
    BECKHOFF AX2513-B200

    BECKHOFF

    AX2513-B200

    DISCONTINUED BY MANUFACTURER, SERVO DRIVE
    Buy Surplus As Low As $1,650.00
    $1,650.00
    Repair Yours $1,375.00
    BECKHOFF AX5140-0000-0200

    BECKHOFF

    AX5140-0000-0200

    DIGITAL COMPACT SERVO DRIVE, 1-AXIS MODULE, 100…480 V AC, RATED OUTPUT CURRENT 40 A, ETHERCAT INTERFACE, OCT, HARDWARE VERSION 2.0, FIRMWARE VERSION 2.06
    $4,046.00 Buy Surplus As Low As $2,428.00
    $2,428.00
    Repair Yours $2,016.00
    BECKHOFF AX5103-0000-0202

    BECKHOFF

    AX5103-0000-0202

    DIGITAL COMPACT SERVO DRIVE, 1-AXIS MODULE, 100…480 V AC, RATED OUTPUT CURRENT 3 A, ETHERCAT INTERFACE, OCT, HARDWARE VERSION 2.0, FIRMWARE VERSION = 2.10
    $1,505.00 Buy Surplus As Low As $903.00
    $903.00
    Repair Yours $750.00
    BECKHOFF AX5118-0000-0201

    BECKHOFF

    AX5118-0000-0201

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 18A,1-AXIS DRIVE, 100-480 VACETHERCAT INTERFACEINTEGRATED MAINS FILTERHARDWARE VERSION 2.0FIRMWARE VERSION 2.060-599 HZ SPECIAL COATED BOARDS FOR T ...
    $2,662.40 Buy Surplus As Low As $1,373.00
    $1,373.00
    Repair Yours $1,140.00
    BECKHOFF AX5118-0000-0203

    BECKHOFF

    AX5118-0000-0203

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 18A,1-AXIS DRIVE, 100-480 VACETHERCAT INTERFACEINTEGRATED MAINS FILTERHARDWARE VERSION 2.0FIRMWARE VERSION >= 2.100-599 HZ SPECIAL COATED BOARDS FO ...
    $2,662.40 Buy Surplus As Low As $1,373.00
    $1,373.00
    Repair Yours $1,140.00
    BECKHOFF AX5118-0000-0210

    BECKHOFF

    AX5118-0000-0210

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 18A,1-AXIS DRIVE, 100-480 VACETHERCAT INTERFACEINTEGRATED MAINS FILTERHARDWARE VERSION 2.0FIRMWARE VERSION 2.060-833 HZ
    $2,519.46 Buy Surplus As Low As $1,299.00
    $1,299.00
    Repair Yours $1,079.00
    BECKHOFF AX5118-0000-0212

    BECKHOFF

    AX5118-0000-0212

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 18 A,1-AXIS DRIVE, 100-480 VACETHERCAT INTERFACEINTEGRATED MAINS FILTERHARDWARE VERSION 2.0FIRMWARE VERSION >= 2.100-833 HZ
    $2,519.46 Buy Surplus As Low As $1,299.00
    $1,299.00
    Repair Yours $1,079.00
    BECKHOFF AX5125-0000-0203

    BECKHOFF

    AX5125-0000-0203

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 25 A,1-AXIS DRIVE, 100-480 VACETHERCAT INTERFACEINTEGRATED MAINS FILTERHARDWARE VERSION 2.0FIRMWARE VERSION >= 2.100-599 HZ SPECIAL COATED BOARDS F ...
    $3,663.04 Buy Surplus As Low As $1,889.00
    $1,889.00
    Repair Yours $1,568.00
    BECKHOFF AX5125-0000-0212

    BECKHOFF

    AX5125-0000-0212

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 25 A,1-AXIS DRIVE, 100-480 VACETHERCAT INTERFACEINTEGRATED MAINS FILTERHARDWARE VERSION 2.0FIRMWARE VERSION >= 2.100-833 HZ
    $3,520.09 Buy Surplus As Low As $1,814.00
    $1,814.00
    Repair Yours $1,506.00
    BECKHOFF AX5125-0000-1201

    BECKHOFF

    AX5125-0000-1201

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 25 A,1-AXIS DRIVE, 100-480 VACETHERCAT INTERFACEINTEGRATED MAINS FILTERHARDWARE VERSION 2.00-599 HZSPECIAL VERSION -1201:- ID NAGEL IDN P-0-0851- F ...
    $3,520.09 Buy Surplus As Low As $1,814.00
    $1,814.00
    Repair Yours $1,506.00
    BECKHOFF AX5125-0000-2202

    BECKHOFF

    AX5125-0000-2202

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 25A,1-AXIS DRIVE, 100-480 VACECONOMY TYPEETHERCAT INTERFACEOCT FEEDBACKINTEGRATED MAINS FILTERHARDWARE VERSION 2.0FIRMWARE VERSION >= 2.100-599 HZ
    $2,872.00 Buy Surplus As Low As $1,724.00
    $1,724.00
    Repair Yours $1,431.00
    BECKHOFF AX5125-0010-0200

    BECKHOFF

    AX5125-0010-0200

    (PRICE/METER) DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 25 A,1-AXIS DRIVE, 100-480 VACETHERCAT INTERFACEINTEGRATED MAINS FILTERHARDWARE VERSION 2.0FIRMWARE VERSION 2.060-599 HZ CONSTRUCTION ...
    $4,145.49 Buy Surplus As Low As $2,137.00
    $2,137.00
    Repair Yours $1,774.00
    BECKHOFF AX5140-0000-0212

    BECKHOFF

    AX5140-0000-0212

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 40 A,1-AXIS DRIVE, 100-480 VACETHERCAT INTERFACEINTEGRATED MAINS FILTERHARDWARE VERSION 2.0FIRMWARE VERSION >= 2.100-833 HZ
    $3,895.33 Buy Surplus As Low As $2,008.00
    $2,008.00
    Repair Yours $1,667.00
    BECKHOFF AX5140-0000-1201

    BECKHOFF

    AX5140-0000-1201

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 40 A,1-AXIS DRIVE, 100-480 VACETHERCAT INTERFACEINTEGRATED MAINS FILTERHARDWARE VERSION 2.00-599 HZSPECIAL VERSION -1201:- ID NAGEL IDN P-0-0851- F ...
    $3,895.33 Buy Surplus As Low As $2,008.00
    $2,008.00
    Repair Yours $1,667.00
    BECKHOFF AX5140-0000-1203

    BECKHOFF

    AX5140-0000-1203

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 40 A,1-AXIS DRIVE, 100-480 VACETHERCAT INTERFACEINTEGRATED MAINS FILTERHARDWARE VERSION 2.0FIRMWARE VERSION >=2.100-2000 HZSPECIAL VERSION -1203:- ...
    $3,895.33 Buy Surplus As Low As $2,008.00
    $2,008.00
    Repair Yours $1,667.00
    BECKHOFF AX5140-0000-2202

    BECKHOFF

    AX5140-0000-2202

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 40A,1-AXIS DRIVE, 100-480 VACECONOMY TYPEETHERCAT INTERFACEOCT FEEDBACKINTEGRATED MAINS FILTERHARDWARE VERSION 2.0FIRMWARE VERSION >= 2.100-599 HZ
    $3,189.00 Buy Surplus As Low As $1,914.00
    $1,914.00
    Repair Yours $1,589.00
    BECKHOFF AX5172-0000-0212

    BECKHOFF

    AX5172-0000-0212

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 72 A,1-AXIS DRIVE, 3X400-480 VACETHERCAT INTERFACEINTEGRATED MAINS FILTERHARDWARE VERSION 2.0FIRMWARE VERSION >= 2.100-833 HZ OCT (ONE CABLE TECHNO ...
    $6,404.06 Buy Surplus As Low As $3,300.00
    $3,300.00
    Repair Yours $2,739.00
    BECKHOFF AX5190-0000-0210

    BECKHOFF

    AX5190-0000-0210

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 90A,1-AXIS DRIVE,3X400-480 VACETHERCAT INTERFACEHARDWARE VERSION 2.0FIRMWARE VERSION 2.060-833 HZ OCT (ONE CABLE TECHNOLOGY) NOT SUPPORTEDCOMPATIBL ...
    $7,854.98 Buy Surplus As Low As $4,047.00
    $4,047.00
    Repair Yours $3,360.00
    BECKHOFF AX5191-0000-0210

    BECKHOFF

    AX5191-0000-0210

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 110A,1-AXIS DRIVE,3X400-480 VACETHERCAT INTERFACEHARDWARE VERSION 2.0FIRMWARE VERSION 2.060-833 HZ OCT (ONE CABLE TECHNOLOGY) NOT SUPPORTEDCOMPATIB ...
    $8,655.49 Buy Surplus As Low As $4,460.00
    $4,460.00
    Repair Yours $3,702.00
    BECKHOFF AX5192-0000-0210

    BECKHOFF

    AX5192-0000-0210

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 143A,1-AXIS DRIVE,3X400-480 VACETHERCAT INTERFACEHARDWARE VERSION 2.0FIRMWARE VERSION 2.060-833 HZ OCT (ONE CABLE TECHNOLOGY) NOT SUPPORTEDCOMPATIB ...
    $10,292.24 Buy Surplus As Low As $5,304.00
    $5,304.00
    Repair Yours $4,403.00
    BECKHOFF AX5125-0000-0000

    BECKHOFF

    AX5125-0000-0000

    SERVO DRIVE, DIGITAL COMPACT, 25 AMP, 3 PHASE, 100-480 VAC, 25 AMP RATED OUTPUT, 50 AMP PEAK OUTPUT, ETHERCAT, IP20
    $3,896.00 Buy Surplus As Low As $2,338.00
    $2,338.00
    Repair Yours $1,941.00
    BECKHOFF AX5160-0000-0202

    BECKHOFF

    AX5160-0000-0202

    DIGITAL COMPACT SERVO DRIVE, 1-AXIS MODULE, 3 X 400…480 V AC, RATED OUTPUT CURRENT 60 A, ETHERCAT INTERFACE, HARDWARE VERSION 2.0, FIRMWARE VERSION = 2.10
    $6,175.00 Buy Surplus As Low As $3,705.00
    $3,705.00
    Repair Yours $3,076.00
    BECKHOFF AX5172-0000-0200

    BECKHOFF

    AX5172-0000-0200

    SERVO DRIVE, DIGITAL, COMPACT, 1-AXIS MODULE, 3 X 400-480 VAC, 72 AMP RATED OUTPUT CURRENT, ETHERCAT INTERFACE, HARDWARE VERSION 2.0, FIRMWARE VERSION 2.06
    $6,650.00 Buy Surplus As Low As $3,990.00
    $3,990.00
    Repair Yours $3,312.00
    BECKHOFF AX5172-0000-0202

    BECKHOFF

    AX5172-0000-0202

    DIGITAL COMPACT SERVO DRIVE, 1-AXIS MODULE, 3 X 400…480 V AC, RATED OUTPUT CURRENT 72 A, ETHERCAT INTERFACE, HARDWARE VERSION 2.0, FIRMWARE VERSION = 2.10
    $6,650.00 Buy Surplus As Low As $3,990.00
    $3,990.00
    Repair Yours $3,312.00
    BECKHOFF AX5190-0000-0200

    BECKHOFF

    AX5190-0000-0200

    DIGITAL COMPACT SERVO DRIVE, 1-AXIS MODULE, 3 X 400…480 V AC, RATED OUTPUT CURRENT 90 A, ETHERCAT INTERFACE, HARDWARE VERSION 2.0, FIRMWARE VERSION 2.06
    $8,158.00 Buy Surplus As Low As $4,895.00
    $4,895.00
    Repair Yours $4,063.00
    BECKHOFF AX5193-0000-0200

    BECKHOFF

    AX5193-0000-0200

    DIGITAL COMPACT SERVO DRIVE, 1-AXIS MODULE, 3 X 400…480 V AC, RATED OUTPUT CURRENT 170 A, ETHERCAT INTERFACE, HARDWARE VERSION 2.0, FIRMWARE VERSION 2.06
    $11,577.00 Buy Surplus As Low As $6,947.00
    $6,947.00
    Repair Yours $5,767.00
    BECKHOFF AX5193-0000-0202

    BECKHOFF

    AX5193-0000-0202

    DIGITAL COMPACT SERVO DRIVE, 1-AXIS MODULE, 3 X 400…480 V AC, RATED OUTPUT CURRENT 170 A, ETHERCAT INTERFACE, HARDWARE VERSION 2.0, FIRMWARE VERSION = 2.10
    $11,577.00 Buy Surplus As Low As $6,947.00
    $6,947.00
    Repair Yours $5,767.00
    BECKHOFF AX5201-0000-0000

    BECKHOFF

    AX5201-0000-0000

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 2X1.5 A, 2-AXIS DRIVE, 100-480 VAC, ETHERCAT INTERFACE, INTEGRATED MAINS FILTER, 0-599 HZ
    $2,178.29 Buy Surplus As Low As $1,307.00
    $1,307.00
    Repair Yours $1,400.00
    BECKHOFF AX5201-0000-0200

    BECKHOFF

    AX5201-0000-0200

    DIGITAL COMPACT SERVO DRIVE, 2-AXIS MODULE, 100480 V AC, RATED OUTPUT CURRENT 2 X 1.5 A,ETHERCAT INTERFACE, OCT, HARDWARE VERSION 2.0, FIRMWARE VERSION 2.06
    $2,191.00 Buy Surplus As Low As $1,315.00
    $1,315.00
    Repair Yours $1,092.00
    Previous Next
    1 2 3 4 5 6 7 8 9 10 11