CNC Controllers

Showing 1489 - 1512 of 2142 products

$6,099.49

Only 10 units left

Product
Article Number (Market Facing Number)	6FC53710AA300AA1 \| 6FC53710AA300AA1
Product Description	spare part SINUMERIK 840D sl NCU 710.3PN with PLC 317-3PN/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	4042948665329
UPC	887621150839
Commodity Code	85371010
LKZ_FDB/ CatalogID	NC61
Product Group	5706
Group Code	R2S1
Country of origin	Germany
SCIP number	d30f6a34-6fdc-4b08-af37-c43cdd362666
Delivery information
Net Weight (lb)	8.267 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC5111-0CB02-0AA0 Siemens

$2,893.10

Only 7 units left

Product
Article Number (Market Facing Number)	6FC51110CB020AA0 \| 6FC51110CB020AA0
Product Description	**spare part** SINUMERIK 840C/840CE I/O module mix I/O 16 I/16 Q 0.4 A 4 Q analog +/-10V
Product family	Not available
Product Lifecycle (PLM)	PM490:Start of final year of support
Additional Product Information
EAN	4025515006152
UPC	Not available
Commodity Code	85389091
LKZ_FDB/ CatalogID	NC.840CE
Product Group	9302
Group Code	R2S1
Country of origin	Germany
SCIP number	Not available
Delivery information
Net Weight (lb)	1.235 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC5235-0AA05-1AA1 Siemens

$1,606.45

Only 3 units left

Buy the Siemens 6FC5235-0AA05-1AA1 - a genuine Siemens industrial automation component engineered for reliable performance in demanding manufacturing and process control environments. The Siemens 6FC5235-0AA05-1AA1 is a direct drop-in replacement for existing installations and ships ready for integration.

Siemens 6FC3788-3EF 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 6fc5212-0aa01-1aa0 Siemens

$2,232.00

Only 1 unit left

Product
Article Number (Market Facing Number)	6FC52120AA011AA0 \| 6FC52120AA011AA0
Product Description	spare part SINUMERIK 840D/DE electronic module for CNC link module (PROFIBUS DP) for NCU 573.2 PII / 573.3 573.4/573.5
Product family	Not available
Product Lifecycle (PLM)	PM410:Product cancellation
Additional Product Information
EAN	Not available
UPC	040892738841
Commodity Code	85389091
LKZ_FDB/ CatalogID	NC61E
Product Group	5705
Group Code	R2S1
Country of origin	Germany
SCIP number	Not available
Delivery information
Net Weight (lb)	0.331 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC3988-7BJ12 Siemens

$675.00

Only 3 units left

Buy the Siemens 6FC3988-7BJ12 - a genuine Siemens industrial automation component engineered for reliable performance in demanding manufacturing and process control environments. The Siemens 6FC3988-7BJ12 is a direct drop-in replacement for existing installations and ships ready for integration.

Siemens 6FC5210-0DF22-0 Siemens

$7,000.00

Only 3 units left

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

Siemens 6FC5251-0AB15-0AA0 Siemens

$0.00

Sold Out

Product
Article Number (Market Facing Number)	6FC52510AB150AA0 \| 6FC52510AB150AA0
Product Description	**spare part** SINUMERIK 810D/810DE/840D/840DE multidimensional through- slope compensation delivery of a license (CoL)
Product family	Not available
Product Lifecycle (PLM)	PM490:Start of final year of support
Additional Product Information
EAN	4025515020097
UPC	Not available
Commodity Code	49011000
LKZ_FDB/ CatalogID	NC60
Product Group	5705
Group Code	R2S1
Country of origin	Germany
SCIP number	Not available
Delivery information
Net Weight (lb)	0.022 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC5103-0AB03-1AA2 Siemens

$1,788.11

Only 2 units left

Product
Article Number (Market Facing Number)	6FC51030AB031AA2
Product Description	**spare part** SINUMERIK 840C/840CE 19" flat operator panel color; 9.5" display; with integrated CNC full keyboard and operator panel interface 24 V DC
Product family	Not available
Product Lifecycle (PLM)	PM490:Start of final year of support
Additional Product Information
EAN	4025515016588
UPC	Not available
Commodity Code	85371098
LKZ_FDB/ CatalogID	NC.840CE
Product Group	9302
Group Code	R2S1
Country of origin	Germany
SCIP number	Not available
Delivery information
Net Weight (lb)	9.921 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC5270-6AX30-3AH0 Siemens

$0.00

Sold Out

Buy the Siemens 6FC5270-6AX30-3AH0 - a genuine Siemens industrial automation component engineered for reliable performance in demanding manufacturing and process control environments. The Siemens 6FC5270-6AX30-3AH0 is a direct drop-in replacement for existing installations and ships ready for integration.

Siemens 6FC5103-0AB03-0AA0 Siemens

$2,692.88

Only 4 units left

Product
Article Number (Market Facing Number)	6FC51030AB030AA0
Product Description	SINUMERIK 840C/840CE 19" SLIMLINE OPERATOR PANEL, W. 10" COLOR TFT DISPLAY W. 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 6FC5220-0AA31-2AA0 Siemens

$12,524.76

Only 9 units left

Buy the Siemens 6FC5220-0AA31-2AA0 - a genuine Siemens industrial automation component engineered for reliable performance in demanding manufacturing and process control environments. The Siemens 6FC5220-0AA31-2AA0 is a direct drop-in replacement for existing installations and ships ready for integration.

Siemens 6FC3191-5JC-Z Siemens

$4,333.06

Only 1 unit left

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

Siemens 6FC5311-0AA00-0AA0 Siemens

$541.25

Only 10 units left

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

Siemens 6FC5203-0AD28-4BB0 Siemens

$1,426.61

Only 3 units left

Product
Article Number (Market Facing Number)	6FC52030AD284BB0
Product Description	**spare part** SINUMERIK FM NC/810D/DE/840D/DE pushbutton panel PP031-MC/HR2-S31 (A5E00238206) based on 6FC5303-0AD25-1AA0 2-channel enable suitable for HT6 not compatible for handheld programming unit identical design as S25
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	85381000
LKZ_FDB/ CatalogID	NC60E
Product Group	5705
Group Code	R2S1
Country of origin	Germany
SCIP number	Not available
Delivery information
Net Weight (lb)	7.586 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC5303-0AF50-4BA1 Siemens

$2,536.05

Only 1 unit left

Product
Article Number (Market Facing Number)	6FC53030AF504BA1 \| 6FC53030AF504BA1
Product Description	**spare part** SINUMERIK machine control panel MCP 429C-T IE ERGOLINE width 429 mm with mechanical buttons with handwheel and feed override mouse
Product family	Not available
Product Lifecycle (PLM)	PM410:Product cancellation
Additional Product Information
EAN	Not available
UPC	887621150587
Commodity Code	85371098
LKZ_FDB/ CatalogID	NC61
Product Group	5706
Group Code	R2S1
Country of origin	Germany
SCIP number	Not available
Delivery information
Net Weight (lb)	11.023 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC3251-1AC00-0XA1 Siemens

$2,206.27

Only 3 units left

Buy the Siemens 6FC3251-1AC00-0XA1 - a genuine Siemens industrial automation component engineered for reliable performance in demanding manufacturing and process control environments. The Siemens 6FC3251-1AC00-0XA1 is a direct drop-in replacement for existing installations and ships ready for integration.

Siemens 6FC5850-3YG23-4YA0 Siemens

$2,092.26

Only 1 unit left

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

GE Fanuc A02B-0060-C474 GE Fanuc

$1,278.73

Only 3 units left

Buy the FANUC A02B-0060-C474 - a genuine FANUC industrial automation component engineered for reliable performance in demanding manufacturing and process control environments. The FANUC A02B-0060-C474 is a direct drop-in replacement for existing installations and ships ready for integration.

Siemens 6FC5212-0AA01-0AA0 Siemens

$0.00

Sold Out

Product
Article Number (Market Facing Number)	6FC52120AA010AA0
Product Description	SINUMERIK 840D/DE LINK MODULE FOR NCU 573.2
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	NC60E
Product Group	Not available
Group Code	R211
Country of origin	Not available
SCIP number	Not available
Delivery information
Net Weight (lb)	0.441 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC4600-1AS01 Siemens

$2,011.84

Only 4 units left

Product
Article Number (Market Facing Number)	6FC46001AS01
Product Description	SINUMERIK 805 OPERATOR KEYBOARD (WITHOUT MONITOR) W. SINGLE-STROKE KEYS AND LEDS
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	85371099
LKZ_FDB/ CatalogID	NC.805E
Product Group	9303
Group Code	R2S1
Country of origin	Germany
SCIP number	Not available
Delivery information
Net Weight (lb)	5.071 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC5250-5AX30-1AH0 Siemens

$538.94

Only 3 units left

Buy the Siemens 6FC5250-5AX30-1AH0 - a genuine Siemens industrial automation component engineered for reliable performance in demanding manufacturing and process control environments. The Siemens 6FC5250-5AX30-1AH0 is a direct drop-in replacement for existing installations and ships ready for integration.

Siemens 6FC5203-0AD27-0AA0 Siemens

$2,529.24

Only 4 units left

Product
Article Number (Market Facing Number)	6FC52030AD270AA0
Product Description	**spare part** SINUMERIK FM NC/810D/DE/840D/DE pushbutton panel PP 031-MC/HR/S customer-specific variant based on 6FC5203-0AD25-0AA0 1-channel enable suitable for handheld programming unit and handheld unit
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	85381000
LKZ_FDB/ CatalogID	NC60E
Product Group	5705
Group Code	R2S1
Country of origin	Germany
SCIP number	Not available
Delivery information
Net Weight (lb)	4.409 lb
Package size unit of measure	Not available
Packaging Quantity	1

Siemens 6FC5270-5AX30-2AH3 Siemens

$0.00

Sold Out

Product
Article Number (Market Facing Number)	6FC52705AX302AH3
Product Description	SINUMERIK 840D SYSTEM SOFTWARE NCU 573.2 31 AXES / STANDARD VERSION PLUS SW VERS. SPECIFIC TECHNOL. FUNCTIONS; ON PC-CARD; SW VERSION 5.2 UPDATE
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	NC60
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

Previous Page 63 / 90Next

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.