CNC Controllers

Showing 1465 - 1488 of 2142 products

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Product
Article Number (Market Facing Number)	6FC53570BY211AE0
Product Description	*spare part* SINUMERIK 840D NCU 572 export version; 5 axes/spindles,(max. 8); memory: NC 1.5 MB, PLC 64 KB (max. 192 KB) for peripherals: S7-IM361, PROFIBUS DP with CNC software, device bus cable
Product family	Not available
Product Lifecycle (PLM)	PM490:Start of final year of support
Additional Product Information
EAN	Not available
UPC	Not available
Commodity Code	85371010
LKZ_FDB/ CatalogID	NC60E
Product Group	5705
Group Code	R2S1
Country of origin	Germany
SCIP number	Not available
Delivery information
Net Weight (lb)	2.425 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC5210-0DF21-0AA0 Siemens

$5,089.49

Only 1 unit left

Product
Article Number (Market Facing Number)	6FC52100DF210AA0 \| 6FC52100DF210AA0
Product Description	spare part SINUMERIK PCU 50 566 MHz, 256 MB RAM; 24 V DC; Windows NT Workstation V4.0 for embedded systems (Windows NT 4.0 Workstation for Embedded Systems)
Product family	Not available
Product Lifecycle (PLM)	PM410:Product cancellation
Additional Product Information
EAN	Not available
UPC	887621198282
Commodity Code	85371010
LKZ_FDB/ CatalogID	NC60E
Product Group	3512
Group Code	R2S1
Country of origin	Germany
SCIP number	2c74d4b0-3fae-4ae4-a54d-5344e005102a
Delivery information
Net Weight (lb)	12.502 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC5114-0AB01 Siemens

$348.80

Only 3 units left

Buy the Siemens 6FC5114-0AB01 Power Supply - an industrial-grade power supply module providing regulated DC output for Siemens automation systems. Features overcurrent protection, high efficiency, wide input voltage range, and DIN-rail mounting. The Siemens 6FC5114-0AB01 is a direct replacement for existing installations.

Siemens 6FC5851-1XG41-6YA0 Siemens

$0.00

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PLC Direct is not an authorized distributor. We offer a broad range of in-stock products with minimal lead time.

Siemens 6FC5111-0CA02-0AA2-0AA2 Siemens

$360.00

Only 3 units left

Buy the Siemens 6FC5111-0CA02-0AA2-0AA2 - a genuine Siemens industrial automation component engineered for reliable performance in demanding manufacturing and process control environments. The Siemens 6FC5111-0CA02-0AA2-0AA2 is a direct drop-in replacement for existing installations and ships ready for integration.

Siemens 6FC5103-0AD02-0AA1 Siemens

$960.00

Only 3 units left

Buy the Siemens 6FC5103-0AD02-0AA1 - a genuine Siemens industrial automation component engineered for reliable performance in demanding manufacturing and process control environments. The Siemens 6FC5103-0AD02-0AA1 is a direct drop-in replacement for existing installations and ships ready for integration.

Siemens 6FC5247-0AF21-0AA0 Siemens

$1,450.00

Only 3 units left

Buy the Siemens 6FC5247-0AF21-0AA0 - a genuine Siemens industrial automation component engineered for reliable performance in demanding manufacturing and process control environments. The Siemens 6FC5247-0AF21-0AA0 is a direct drop-in replacement for existing installations and ships ready for integration.

Siemens 6FC5370-0AA00-3 Siemens

$5,845.00

Only 3 units left

Buy the Siemens 6FC5370-0AA00-3 - a genuine Siemens industrial automation component engineered for reliable performance in demanding manufacturing and process control environments. The Siemens 6FC5370-0AA00-3 is a direct drop-in replacement for existing installations and ships ready for integration.

Siemens 6FC5250-7CY30-2AH0 Siemens

$447.07

Only 3 units left

Buy the Siemens 6FC5250-7CY30-2AH0 - a genuine Siemens industrial automation component engineered for reliable performance in demanding manufacturing and process control environments. The Siemens 6FC5250-7CY30-2AH0 is a direct drop-in replacement for existing installations and ships ready for integration.

Siemens 6FC5210-0DF53-2AA0 Siemens

$10,742.06

Only 9 units left

Product
Article Number (Market Facing Number)	6FC52100DF532AA0 \| 6FC52100DF532AA0
Product Description	**spare part** SINUMERIK PCU 50.5-P electronic control unit i5-520E; 2.4 GHz; 1x2048 MB RAM 24 V DC; Windows XP Professional for embedded systems (Windows XP Professional for Embedded Systems)
Product family	Not available
Product Lifecycle (PLM)	PM410:Product cancellation
Additional Product Information
EAN	Not available
UPC	887621150310
Commodity Code	85371010
LKZ_FDB/ CatalogID	NC62E
Product Group	3512
Group Code	R2S1
Country of origin	Germany
SCIP number	8d86f8d7-c979-4fa8-ba0e-5e091a22bac9
Delivery information
Net Weight (lb)	13.228 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC5548-0AB25-0AA0 Siemens

$2,392.98

Only 5 units left

Buy the Siemens 6FC5548-0AB25-0AA0 - a genuine Siemens industrial automation component engineered for reliable performance in demanding manufacturing and process control environments. The Siemens 6FC5548-0AB25-0AA0 is a direct drop-in replacement for existing installations and ships ready for integration.

Siemens 6FC5371-0AA10-0AA0 Siemens

$6,159.39

Only 3 units left

Product
Article Number (Market Facing Number)	6FC53710AA100AA0 \| 6FC53710AA100AA0
Product Description	spare part SINUMERIK 840D sl NCU 710.1 with PLC 317-2DP user memory: CNC: 3 MB; PLC: 128 KB internal heat dissipation
Product family	Not available
Product Lifecycle (PLM)	PM490:Start of final year of support
Additional Product Information
EAN	Not available
UPC	662643171617
Commodity Code	85371010
LKZ_FDB/ CatalogID	NC61E
Product Group	5705
Group Code	R2S1
Country of origin	Germany
SCIP number	Not available
Delivery information
Net Weight (lb)	9.149 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC5357-0BA11-1AE0 Siemens

$749.18

Only 4 units left

Product
Article Number (Market Facing Number)	6FC53570BA111AE0
Product Description	**spare part** SINUMERIK 840D/840DE NCU 571.2 (can be exported); 5 axes/spindles; memory: NC 256 KB (max. 1.5 MB) PLC 64 KB (max. 288 KB) peripherals: S7 IM 361, prepared for PROFIBUS DP
Product family	Not available
Product Lifecycle (PLM)	PM490:Start of final year of support
Additional Product Information
EAN	4025515018124
UPC	Not available
Commodity Code	85371010
LKZ_FDB/ CatalogID	NC60E
Product Group	5705
Group Code	R2S1
Country of origin	Germany
SCIP number	Not available
Delivery information
Net Weight (lb)	2.205 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC5357-0BB21-0AE0 Siemens

$6,573.00

Only 9 units left

Product
Article Number (Market Facing Number)	6FC53570BB210AE0 \| 6FC53570BB210AE0
Product Description	spare part SINUMERIK 840D/DE NCU 572.2 without system software memory: NC 0.5 MB; PLC 96 KB PROFIBUS DP prepared
Product family	Not available
Product Lifecycle (PLM)	PM490:Start of final year of support
Additional Product Information
EAN	4025515018254
UPC	Not available
Commodity Code	85371010
LKZ_FDB/ CatalogID	NC60E
Product Group	5705
Group Code	R2S1
Country of origin	Germany
SCIP number	445b6768-40ca-4697-837c-4bcc0fbc245b
Delivery information
Net Weight (lb)	1.653 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC3531-0AB-Z Siemens

$0.00

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PLC Direct is not an authorized distributor. We offer a broad range of in-stock products with minimal lead time.

Siemens 6FC5203-0AF04-0AA0 Siemens

$1,916.12

In stock, 11 units

Product
Article Number (Market Facing Number)	6FC52030AF040AA0 \| 6FC52030AF040AA0
Product Description	**spare part** SINUMERIK operator panel front OP 010S, 10.4" with mechanical buttons
Product family	Not available
Product Lifecycle (PLM)	PM410:Product cancellation
Additional Product Information
EAN	4019169390545
UPC	040892738469
Commodity Code	85371098
LKZ_FDB/ CatalogID	NC62
Product Group	3512
Group Code	R2S1
Country of origin	Germany
SCIP number	Not available
Delivery information
Net Weight (lb)	15.331 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC5210-0DF52-3AA0 Siemens

$7,522.33

In stock, 16 units

Product
Article Number (Market Facing Number)	6FC52100DF523AA0 \| 6FC52100DF523AA0
Product Description	**spare part** SINUMERIK PCU 50.5-C electronic control unit 1.8 GHz; 4 GB RAM 24 V DC; Windows 7 for embedded systems
Product family	Not available
Product Lifecycle (PLM)	PM410:Product cancellation
Additional Product Information
EAN	Not available
UPC	887621264550
Commodity Code	85371010
LKZ_FDB/ CatalogID	NC62
Product Group	3512
Group Code	R2S1
Country of origin	Germany
SCIP number	Not available
Delivery information
Net Weight (lb)	13.228 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC5356-0BB11-0 Siemens

$1,580.50

Only 3 units left

Buy the Siemens 6FC5356-0BB11-0 - a genuine Siemens industrial automation component engineered for reliable performance in demanding manufacturing and process control environments. The Siemens 6FC5356-0BB11-0 is a direct drop-in replacement for existing installations and ships ready for integration.

Siemens 6FC5372-0AA01-0AA2 Siemens

$9,652.50

Only 5 units left

Product
Article Number (Market Facing Number)	6FC53720AA010AA2 \| 6FC53720AA010AA2
Product Description	spare part SINUMERIK 840D sl CNC hardware NCU 720.2 PN with PLC 319-3PN/DP user memory: CNC: 3 MB; PLC: 512 KB internal heat dissipation
Product family	Not available
Product Lifecycle (PLM)	PM410:Product cancellation
Additional Product Information
EAN	Not available
UPC	040892745191
Commodity Code	85371010
LKZ_FDB/ CatalogID	NC61E
Product Group	5706
Group Code	R2S1
Country of origin	Germany
SCIP number	Not available
Delivery information
Net Weight (lb)	7.937 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC5111-0CA03-0AA1 Siemens

$1,115.31

Only 5 units left

Product
Article Number (Market Facing Number)	6FC51110CA030AA1
Product Description	SINUMERIK 840C/ 840CE COMPACT DMP 8 OUTPUTS 8 OUTPUTS 24 V DC/2 A FLOATING, SHORT-CIRCUIT PROOF
Product family	Not available
Product Lifecycle (PLM)	PM500:Discontinued Product or end of PLM & Support
Additional Product Information
EAN	Not available
UPC	Not available
Commodity Code	Not available
LKZ_FDB/ CatalogID	NC.840CE
Product Group	Not available
Group Code	R211
Country of origin	Not available
SCIP number	Not available
Delivery information
Net Weight (lb)	0.419 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC9344-2TL Siemens

$608.12

Only 3 units left

Buy the Siemens 6FC9344-2TL Cable/Accessory - a factory-specified component for Siemens industrial automation systems providing reliable signal, power, or communication connections. The Siemens 6FC9344-2TL is a direct replacement for existing installations.

Siemens 6FC5210-0DF22-2 Siemens

$7,000.00

Only 3 units left

Buy the Siemens 6FC5210-0DF22-2 - a genuine Siemens industrial automation component engineered for reliable performance in demanding manufacturing and process control environments. The Siemens 6FC5210-0DF22-2 is a direct drop-in replacement for existing installations and ships ready for integration.

Siemens 6FC9320-2AC Siemens

$0.00

Sold Out

Buy the Siemens 6FC9320-2AC - a genuine Siemens industrial automation component engineered for reliable performance in demanding manufacturing and process control environments. The Siemens 6FC9320-2AC is a direct drop-in replacement for existing installations and ships ready for integration.

Siemens 6FC5247-0AF08-2AA0 Siemens

$2,292.25

Only 9 units left

Buy the Siemens 6FC5247-0AF08-2AA0 - a genuine Siemens industrial automation component engineered for reliable performance in demanding manufacturing and process control environments. The Siemens 6FC5247-0AF08-2AA0 is a direct drop-in replacement for existing installations and ships ready for integration.

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CNC controllers are the central hardware units that govern all axis motion, PLC sequencing, and operator interaction for CNC machine tools, and the failure of a controller can bring an entire machining operation to a standstill. Sourcing a compatible replacement CNC controller for an installed system requires matching not only the brand and model but also the specific generation, axis configuration, and communication architecture. PLC Direct supplies surplus sealed, refurbished, and used CNC controllers for installed Siemens SINUMERIK and Fanuc CNC machining systems.

Where Are CNC Controllers Used in Industrial Environments?

CNC controllers are used wherever machine tools require numerically controlled, multi-axis motion for cutting, forming, or finishing operations, from standalone turning centers to large multi-axis machining cells. Machine tool controllers from Siemens SINUMERIK and Fanuc CNC Series platforms are found across a wide range of metalworking and precision manufacturing environments. Facilities and operations that depend on CNC controllers include:

Metal cutting and machining centers using SINUMERIK CNC controls or Fanuc CNC systems to govern coordinated multi-axis milling, turning, drilling, and grinding operations.

Automotive manufacturing plants running high-volume CNC machining lines where replacement machine tool controllers must match the installed platform generation.

Aerospace fabrication operations dependent on tight-tolerance CNC machining, where CNC controller continuity is critical to maintaining process specifications.

Tool and die shops maintaining older SINUMERIK 828D or Fanuc Series 0i installations, where controller replacement is the only alternative to full machine decommissioning.

Industrial production facilities managing multi-brand CNC fleets requiring replacement CNC controls across both Siemens and Fanuc platforms within the same operation.

When a CNC controller fails in a production environment, the priority is sourcing a compatible replacement that restores the machine to its original operating specification.

Which Brands of CNC Controllers Does PLC Direct Stock?

PLC Direct carries CNC controllers across Siemens and Fanuc platforms, covering current-generation and legacy machine tool controllers for installed CNC machining systems.

Siemens SINUMERIK 840D sl CNC Controls: Siemens SINUMERIK 840D sl CNC controllers, including NCU 710, NCU 720, and NCU 730 configurations, are stocked for replacement in installed SINUMERIK 840D sl machining systems across manufacturing and fabrication environments.

Siemens SINUMERIK 828D CNC Controls: The SINUMERIK 828D is a compact panel-based CNC controller designed for turning and milling applications, and hardware for installed 828D systems is available for replacement and lifecycle support.

Siemens SINUMERIK ONE CNC Controls: SINUMERIK ONE NCU hardware is available for replacement in current-generation Siemens CNC machining environments requiring controller-level maintenance.

Fanuc Series CNC Controls: Fanuc CNC controllers, including Series 0i, 30i, 31i, and 35i machine tool controllers, are stocked for replacement and maintenance in installed Fanuc CNC milling, turning, grinding, and multi-axis machining systems.

All CNC controllers listed above are available as surplus sealed, refurbished, or used, providing condition-grade options to match both budget and application requirements.

What Should You Know Before Ordering CNC Controllers?

Hardware condition options: CNC controllers from PLC Direct are supplied as surplus sealed, refurbished, or used. Surplus sealed units are factory-sealed and undeployed; refurbished units have been tested and restored to operational condition; used controllers are pulled from service and sold as-is under the standard PLC Direct warranty.

Compatibility and part identification: CNC controllers are generation-specific and axis-configuration-specific. For Siemens SINUMERIK hardware, confirm the exact generation (SINUMERIK 828D, 840D sl, or SINUMERIK ONE), the NCU variant, and the PLC integration type before ordering, as these are not interchangeable across generations. For Fanuc CNC controls, confirm the Series generation (0i, 30i, 31i, or 35i) and the axis count. In both cases, the part number from the installed controller is the most reliable reference for sourcing a compatible replacement.

Warranty: All CNC controllers purchased from PLC Direct carry a standard 1-year PLC Direct warranty covering defects and functionality, applicable to surplus sealed, refurbished, and used products.

PLC Direct supplies CNC controllers for replacement and maintenance purposes and does not provide system design, programming, or integration services.

Frequently Asked Questions

PLC Direct stocks CNC controllers for installed Siemens SINUMERIK and Fanuc CNC systems, including SINUMERIK 828D, 840D sl, and SINUMERIK ONE machine tool controllers, and Fanuc Series 0i, 30i, 31i, and 35i CNC controls. Hardware is available as surplus sealed, refurbished, or used to support replacement and lifecycle maintenance of installed CNC machining systems.

Confirm the CNC controller brand and generation from the installed unit, for example, Siemens SINUMERIK 840D sl NCU 720 or Fanuc Series 30i, and locate the part number from the controller housing or documentation. Search by part number on plc-direct.com or contact PLC Direct directly to confirm availability of the specific machine tool controller needed.

No. Fanuc Series CNC generations (0i, 30i, 31i, 35i) differ in axis capacity, processing architecture, and I/O configuration. A replacement Fanuc CNC controller must match the installed Series generation and axis count to restore the machine to its original specification. Always confirm the exact Series designation and part number before ordering.

The SINUMERIK 828D is a compact, panel-integrated CNC controller designed for standard turning and milling machines, with the control hardware integrated into the operator panel. The SINUMERIK 840D sl is a modular, high-performance platform based on separate NCU and operator panel hardware, suited to complex multi-axis machining, grinding, and high-speed cutting applications. The two generations are architecturally distinct, and replacement hardware is not interchangeable between them.

All CNC controllers purchased from PLC Direct are covered by a 1-year PLC Direct warranty applicable to surplus sealed, refurbished, and used products, covering defects and functionality. PLC Direct does not offer programming, configuration, or integration services.