CNC Controllers

Showing 2017 - 2040 of 2142 products

$1,079.99

Only 4 units left

Product
Article Number (Market Facing Number)	6FC52505BX103AH0 \| 6FC52505BX103AH0
Product Description	spare part SINUMERIK 840DE CNC software 6-5 for NCU 571.2/571.3 on PC card Software version 5.3; single license
Product family	Not available
Product Lifecycle (PLM)	PM500:Discontinued Product or end of PLM & Support
Additional Product Information
EAN	4025515017561
UPC	Not available
Commodity Code	85235190
LKZ_FDB/ CatalogID	NC60E
Product Group	9302
Group Code	R2S1
Country of origin	Germany
SCIP number	Not available
Delivery information
Net Weight (lb)	0.220 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC53120DA001AA1 Siemens

$2,692.07

Only 9 units left

Product
Article Number (Market Facing Number)	6FC53120DA001AA1 \| 6FC53120DA001AA1
Product Description	SINUMERIK 840D sl TCU 30.3 (THIN CLIENT UNIT) FOR SINUMERIK/SIMOTION This product contains items supplied by third parties and may only be resold in conditions where the same protection level applies as under the standard conditions of delivery of Siemens AG for hardware products. If required, Siemens AG can supply these terms and conditions. https://mall.industry.siemens. com/legal/de-en/allgem_ lieferbeding_gl_h36_s0141_ n41_en.pdf
Product family	Not available
Product Lifecycle (PLM)	PM400:Announcement of product phase-out
Additional Product Information
EAN	Not available
UPC	804766499159
Commodity Code	85389091
LKZ_FDB/ CatalogID	NC62
Product Group	X0HH
Group Code	R211
Country of origin	Germany
SCIP number	Not available
Delivery information
Net Weight (lb)	3.461 lb
Package size unit of measure	Inch
Packaging Quantity	1

Siemens 6FC5103-0AB03-0AA1 Siemens

$2,944.19

Only 1 unit left

Product
Article Number (Market Facing Number)	6FC51030AB030AA1
Product Description	SINUMERIK 840C/840CE 19" SLIMLINE OPERATOR PANEL 9.5" COLOR DISPLAY, WITH INTEGRATED NC KEYBOARD AND KEYBOARD INTERFACE 115-230 V AC
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)	9.921 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC5147-0AA07-0AA1 Siemens

$1,311.90

Only 8 units left

Buy the Siemens 6FC5147-0AA07-0AA1 - a genuine Siemens industrial automation component engineered for reliable performance in demanding manufacturing and process control environments. The Siemens 6FC5147-0AA07-0AA1 is a direct drop-in replacement for existing installations and ships ready for integration.

Siemens 6FC5851-1YG44-2YA0-Z Siemens

$0.00

Sold Out

Buy the Siemens 6FC5851-1YG44-2YA0-Z - a genuine Siemens industrial automation component engineered for reliable performance in demanding manufacturing and process control environments. The Siemens 6FC5851-1YG44-2YA0-Z is a direct drop-in replacement for existing installations and ships ready for integration.

Siemens 6FC3887-0KA-Z Siemens

$0.00

Sold Out

Buy the Siemens 6FC3887-0KA-Z - a genuine Siemens industrial automation component engineered for reliable performance in demanding manufacturing and process control environments. The Siemens 6FC3887-0KA-Z is a direct drop-in replacement for existing installations and ships ready for integration.

Siemens 6FC5840-1XG10-3YA0 Siemens

$2,480.00

Only 3 units left

Buy the Siemens 6FC5840-1XG10-3YA0 - a genuine Siemens industrial automation component engineered for reliable performance in demanding manufacturing and process control environments. The Siemens 6FC5840-1XG10-3YA0 is a direct drop-in replacement for existing installations and ships ready for integration.

Siemens 6FC5247-0AA17-0AA0 Siemens

$0.00

Sold Out

Sinumerik FM-NC/810D/DE/840D/DE Power Supply Unit 24 V DC FOR OP031 with MMC 100/101/102

Siemens 6FC3985-7AJ Siemens

$2,313.00

Only 3 units left

Product
Article Number (Market Facing Number)	6FC39857AJ
Product Description	Not available
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
Product Group	Not available
Group Code	Not available
Country of origin	Not available
SCIP number	Not available
Delivery information
Net Weight (lb)	Not available
Package size unit of measure	Not available
Packaging Quantity	Not available

Siemens 6FC5370-3AM20-0AA0 Siemens

$4,519.66

Only 1 unit left

Product
Article Number (Market Facing Number)	6FC53703AM200AA0 \| 6FC53703AM200AA0
Product Description	**spare part** SINUMERIK 828D Basic M CNC hardware PPU 241.2 horizontal
Product family	Not available
Product Lifecycle (PLM)	PM410:Product cancellation
Additional Product Information
EAN	Not available
UPC	887621150747
Commodity Code	85371010
LKZ_FDB/ CatalogID	NC82
Product Group	5704
Group Code	R2S1
Country of origin	China
SCIP number	Not available
Delivery information
Net Weight (lb)	9.921 lb
Package size unit of measure	Inch
Packaging Quantity	1

Siemens 6FC3984-3TB Siemens

$0.00

Sold Out

Product
Article Number (Market Facing Number)	6FC39843TB
Product Description	SINUMERIK I/O BASIC MODULE WITH MOUNTING PLATE
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.820
Product Group	Not available
Group Code	R211
Country of origin	Not available
SCIP number	Not available
Delivery information
Net Weight (lb)	Not available
Package size unit of measure	Not available
Packaging Quantity	Not available

Siemens 6FC3188-3EF Siemens

$0.00

Sold Out

Buy the Siemens 6FC3188-3EF - a genuine Siemens industrial automation component engineered for reliable performance in demanding manufacturing and process control environments. The Siemens 6FC3188-3EF is a direct drop-in replacement for existing installations and ships ready for integration.

Siemens 6FC5303-0AF34-0AA0 Siemens

$0.00

Sold Out

Product
Article Number (Market Facing Number)	6FC53030AF340AA0 \| 6FC53030AF340AA0
Product Description	**spare part** SINUMERIK machine control panel MCP 416 USB USB interface width 416 mm, membrane type keys
Product family	Not available
Product Lifecycle (PLM)	PM410:Product cancellation
Additional Product Information
EAN	Not available
UPC	804766356919
Commodity Code	85371098
LKZ_FDB/ CatalogID	NC82
Product Group	5704
Group Code	R2S1
Country of origin	China
SCIP number	Not available
Delivery information
Net Weight (lb)	2.535 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC51100-0DB03-0AA4 Siemens

$0.00

Sold Out

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

Siemens 6FC9340-5QY00-1AF0 Siemens

$784.00

Only 1 unit left

Product
Article Number (Market Facing Number)	6FC93405QY001AF0
Product Description	SINUMERIK/SIROTEC (ACCESSORIES) F.READER, PUNCH/DIGIT. SENSOR, CABLE 5 M
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	85444290
LKZ_FDB/ CatalogID	NCZ
Product Group	9306
Group Code	R2S3
Country of origin	Slovakia
SCIP number	Not available
Delivery information
Net Weight (lb)	1.698 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC5210-0DF20-0AA0 Siemens

$7,236.78

Only 9 units left

Product
Article Number (Market Facing Number)	6FC52100DF200AA0 \| 6FC52100DF200AA0
Product Description	spare part SINUMERIK PCU 50 566 MHz, 128 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	4025515016984
UPC	195125288690
Commodity Code	85371010
LKZ_FDB/ CatalogID	NC60E
Product Group	3512
Group Code	R2S1
Country of origin	Germany
SCIP number	c4b930df-6ffa-4cba-a5ca-b0c7233408c1
Delivery information
Net Weight (lb)	12.125 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC5203-0AF26-0AA0-S41 Siemens

$4,047.00

Only 3 units left

Buy the Siemens 6FC5203-0AF26-0AA0-S41 - a genuine Siemens industrial automation component engineered for reliable performance in demanding manufacturing and process control environments. The Siemens 6FC5203-0AF26-0AA0-S41 is a direct drop-in replacement for existing installations and ships ready for integration.

Siemens 6FC5303-1AF00-8AA1 Siemens

$826.82

Only 3 units left

Buy the Siemens 6FC5303-1AF00-8AA1 - a genuine Siemens industrial automation component engineered for reliable performance in demanding manufacturing and process control environments. The Siemens 6FC5303-1AF00-8AA1 is a direct drop-in replacement for existing installations and ships ready for integration.

Siemens 6FC5012-0CA01-0AA0 Siemens

$1,761.21

Only 4 units left

Product
Article Number (Market Facing Number)	6FC50120CA010AA0
Product Description	SINUMERIK 840C/CE/ACR20/805SM IM 328-N INTERFACE FOR CONN. TO SINEC L2-DP SLAVE
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)	Not available
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC5012-0CA02-0AA0 Siemens

$4,657.67

Only 8 units left

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

Siemens 6FC5111-0CA03-0AA2 Siemens

$339.33

Only 5 units left

Product
Article Number (Market Facing Number)	6FC51110CA030AA2 \| 6FC51110CA030AA2
Product Description	**spare part** SINUMERIK 840C/840CE/840D/840DE electronic module for CNC DMP-compact 8 O 8 outputs 24 V DC/2 A isolated, short-circuit-proof with integrated freewheeling diodes
Product family	Not available
Product Lifecycle (PLM)	PM410:Product cancellation
Additional Product Information
EAN	4025515006084
UPC	Not available
Commodity Code	85389091
LKZ_FDB/ CatalogID	NC60E
Product Group	5705
Group Code	R2S1
Country of origin	Germany
SCIP number	Not available
Delivery information
Net Weight (lb)	0.353 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC5210-0DA21-1AA0 Siemens

$3,242.10

Only 3 units left

Product
Article Number (Market Facing Number)	6FC52100DA211AA0
Product Description	**spare part** SINUMERIK FM NC/810D/DE/840D/DE MMC103 with system software software 3.X (lower than Win 3.11) Pentium 133 MHz, 32 MB D-RAM display: English/German (OS: SINUMERIK 840D BS001)
Product family	Not available
Product Lifecycle (PLM)	PM490:Start of final year of support
Additional Product Information
EAN	4025515016908
UPC	Not available
Commodity Code	85389091
LKZ_FDB/ CatalogID	NC60E
Product Group	5705
Group Code	R2S1
Country of origin	Germany
SCIP number	Not available
Delivery information
Net Weight (lb)	6.614 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC5850-3YG23-3YA0-Z Siemens

$2,175.00

Only 3 units left

Buy the Siemens 6FC5850-3YG23-3YA0-Z - a genuine Siemens industrial automation component engineered for reliable performance in demanding manufacturing and process control environments. The Siemens 6FC5850-3YG23-3YA0-Z is a direct drop-in replacement for existing installations and ships ready for integration.

Siemens 6FC5303-0AF13-0AA1 Siemens

$7,245.00

Only 3 units left

Buy the Siemens 6FC5303-0AF13-0AA1 HMI Operator Panel - an industrial touchscreen interface for machine monitoring and control. Features rugged industrial-grade display, configurable visualization, PLC connectivity, and intuitive operator interface. The Siemens 6FC5303-0AF13-0AA1 is suited for factory automation, process control, and packaging. Direct replacement for existing installations.

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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.