About Johnford

Used Johnford CNC Machines for Sale

Resell CNC is your Simple. Reliable. and Trusted.® source for used Johnford CNC machines including slant-bed turning centers, heavy flat-bed lathes, twin-spindle and multi-tasking mill-turn machines, vertical and horizontal machining centers, vertical turning centers, table-type and floor-type horizontal boring mills, and double-column bridge and gantry mills. We handle Johnford models across the full product line: from the widely traded SL-Series and ST-Series lathes through HT twin-turret mill-turn machines, SV and VMC vertical machining centers, AHC and HMC horizontals, BMC and FBMC horizontal boring mills, and DMC, SDMC, and JET bridge and gantry mills.

Johnford is the machine tool brand of Roundtop Machinery Industries Co., Ltd., a Taiwanese manufacturer headquartered in the Shengang District of Taichung. Roundtop traces its roots to the late 1970s and launched CNC production under the Johnford brand in 1984. The company went public on the Taipei Exchange in 1999 and listed on the Taiwan Stock Exchange in 2002, and today operates three manufacturing plants plus its own in-house Meehanite cast-iron foundry. Johnford machines are known for heavy iron construction, square box ways with hand-scraped Turcite-B coating, torque-tube slant beds, and Fanuc controls as standard across most models. In the United States and Canada, Absolute Machine Tools of Lorain, Ohio has been Johnford's exclusive importer since 1992, with an installed base of more than 3,000 machines across North America. Johnford serves aerospace, mold and die, energy, heavy equipment, defense, and general contract manufacturing.

Looking to sell your Johnford? Resell CNC buys used Johnford machines nationwide, any model, any generation, any condition. Free appraisal within 24 hours, competitive offers, and we handle all rigging and transportation. Call (844) 478-8181 or email sales@resellcnc.com.

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Johnford Turning Centers & Heavy Lathes

Johnford's turning lineup is among the broadest in the industry. The SL-Series slant-bed lathes (SL-20 through SL-1200) are the most commonly traded models on the used market, with 8-inch to 27-inch chuck capacities and optional Y-axis, C-axis, and sub-spindle configurations. The ST-Series 60-degree slant-bed heavy lathes extend into 24-inch chucks and 100 HP spindles for oilfield and heavy-duty work, while the GT-Series offers even larger 45-degree bed machines with 240-inch-plus centers. The HT-Series adds twin-turret, twin-spindle mill-turn capability. Flat-bed LC-Series and vertical VTC-Series vertical turning centers handle large-diameter chucking and shaft work for energy and heavy equipment.

Johnford Machining Centers, HBMs & Bridge Mills

Johnford's SV and VMC vertical machining centers cover 40-taper and 50-taper production VMCs, while the SHV Hi-Net series delivers high-speed mold and die work. HMC-Series and the flagship AHC-1600 horizontal machining centers serve aerospace and heavy production. Johnford's BMC and FBMC horizontal boring mills (110 mm to 160 mm spindles) are a signature strength, as are the DMC and SDMC double-column bridge and gantry mills that scale from 900 mm table widths to 20-meter sliding-column configurations for wing skins, die blocks, and large structural work.


Founded	Roundtop Machinery late 1970s; Johnford CNC brand launched 1984
Headquarters	Shengang District, Taichung, Taiwan
Parent Company	Roundtop Machinery Industries Co., Ltd. (publicly traded, TWSE)
US Operations	Absolute Machine Tools (exclusive US importer since 1992), Lorain OH plus Mason OH, Livonia MI, Elgin IL
Best Known For	Heavy box-way lathes, horizontal boring mills, double-column bridge mills
Popular Models	SL-300, SL-500, ST-80BH, HT-30, SV-41H, VMC-1300, AHC-1600, BMC-130, FBMC-160, DMC-1600, SDMC-6000
CNC Controls	Fanuc (standard, 0i-MD/MF, 31i-MB), Siemens 840D and Heidenhain (select models)
Industries Served	Aerospace, mold & die, energy, heavy equipment, defense, general manufacturing

What to Look for When Buying a Used Johnford

Johnford machines are built on Meehanite cast iron, hand-scraped Turcite-B box ways, and Fanuc controls. Here's what to inspect.

On turning centers, check spindle, turret, and ways. Measure spindle runout and test gearbox shifting under load. Check turret indexing on BMT or VDI heads. Inspect box ways for wear and slant beds for crash damage. Replace drive belts at commissioning.

On VMCs and HMCs, verify spindle, ATC, and ballscrews. Test spindle runout and bearing noise. On SV VMCs, inspect Y-axis Turcite and test spindle orient. On AHC-1600 and HMC horizontals, cycle the pallet changer and confirm B-axis accuracy.

On BMC, FBMC, DMC, and SDMC machines, inspect spindle, W-axis, and scales. On boring mills, check the quill for extension wear and test W-axis through full travel. On DMC and SDMC bridges, inspect Schneeberger X-axis rollers and the rotary union on TSC spindles. Heidenhain scales should read cleanly.

Verify the Fanuc control. Pre-2005 machines run Fanuc 0M, 0i-M, or 18M and need battery replacement and memory verification. Newer machines carry 31i-MB. Capture the serial number and year.

Johnford Turning Centers

SL-Series Slant-Bed Lathes

The SL-Series is Johnford's most-traded turning platform: SL-20, SL-25, SL-30, SL-300, SL-500, SL-500A, SL-650, SL-800, and SL-1200. Swing runs 15.7 to 27.5 inches, bores to 115 mm. Y-axis, C-axis, and sub-spindle options are common.

ST-Series Heavy Turning Centers

The ST-Series 60-degree slant-bed heavy lathes span roughly 28 models (ST-40AH through ST-280CX) with 47-inch swing, 24-inch chucks, and 100 HP spindles. Popular in oilfield and energy work.

HT Twin-Turret and Mill-Turn

The HT-Series delivers twin-turret, twin-spindle mill-turn (HT-30 through HT-100). The UMC-730T and SLM-65 extend into 5-axis turn-mill with HSK-A63T or CAPTO B-axis.

GT, LC and VTC Heavy and Vertical Lathes

GT-Series 45-degree heavy bed lathes (GT-40 through GT-395) reach 240-inch centers. LC-Series flat-bed lathes accommodate 90-inch swings. VTC-Series vertical turning centers span 600 to 6,000 mm chuck diameters.

Johnford Machining Centers

SV and VMC Vertical Machining Centers

The SV and VMC family covers 40-taper (VMC-850, VMC-1050, SV-33, SV-41, SV-41H, SV-48H) and 50-taper heavy VMCs (SV-40, VMC-1300HD, VMC-1600, VMC-2000S, VMC-3000S). Twin-spindle -2H variants share a single casting. The SHV Hi-Net is the high-speed mold-and-die line with 24,000 RPM HSK-63A spindles.

HMC and AHC Horizontal Machining Centers

The HMC-Series (HMC-500, HMC-630, HMC-800, HMC-1000H) covers palletized 50-taper horizontals. The flagship AHC-1600 moving-column HMC has a 1,600 x 810 mm table, 800 mm B-axis rotary, CAT-50 spindle, 40-tool ATC, and 44,000 lb weight.

BMC and FBMC Horizontal Boring Mills

The BMC-Series table-type HBMs (BMC-110, BMC-130, BMC-160) use 110 to 160 mm spindles, 35 to 50 HP drives, CAT-50 tooling, 60-tool ATC, B-axis tables, and Heidenhain scales at 55,000 to 110,000 lb. The FBMC-160 floor-type uses a 160 mm bar spindle, 100 HP motor, hydrostatic guideways, and X travels to 15 meters.

DMC and SDMC Bridge and Gantry Mills

The DMC-Series double-column bridge mills span DMC-900 through DMC-6100 with H, S/SH, P/PH, and L/LH suffixes. CT-40/HSK-63 or CT-50/HSK-100 spindles, 24-tool ATC, Heidenhain scales, and optional 5-axis heads. The SDMC sliding-column series (SDMC-6000, SDMC-11000, SDMC-16000) uses twin X-ballscrews or rack-and-pinion for X travels to 20 meters.

How to Sell Your Used Johnford

Johnford machines hold strong resale value on large iron. Bridge mills, boring mills, and heavy lathes are in strong demand.

Resell CNC buys used Johnford machines, every model, every generation, nationwide.

Contact us at (844) 478-8181 or sales@resellcnc.com.
Free appraisal within 24 hours, no obligation.
Accept the offer and we handle rigging, transport, and logistics.

Johnford FAQ

Are used Johnford machines reliable?

Yes. DMC bridge mills, BMC and FBMC boring mills, and ST and GT heavy lathes are widely deployed in aerospace, mold and die, and heavy equipment. Fanuc controls and Meehanite castings give well-maintained units long service lives.

Where are Johnford machines made?

Roundtop Machinery Industries in Taichung, Taiwan. Roundtop operates three plants and its own foundry, ISO 9001 and CE certified.

What CNC control does Johnford use?

Fanuc is standard: 0i-MD or 0i-MF on smaller machines, 31i-MB with AICC II on large and 5-axis platforms. Siemens 840D and Heidenhain TNC available on select models.

What should I inspect before buying a used Johnford?

Check spindle runout and turret indexing on lathes, Turcite and ATC on VMCs, quill and W-axis on boring mills, and Schneeberger ways plus rotary union on bridge mills. Capture the serial number and year.

What Johnford models hold their value best?

DMC and SDMC bridge mills, BMC and FBMC boring mills, ST-80 and larger heavy lathes, and SL-500A lathes with Y-axis and sub-spindle. Call (844) 478-8181 for a valuation.

Who supports Johnford machines in the United States?

Absolute Machine Tools of Lorain, Ohio has been Johnford's exclusive US importer since 1992 with centers in Ohio, Michigan, and Illinois.

Does Resell CNC offer financing on used Johnford machines?

Yes. Resell CNC offers flexible financing options. Call (844) 478-8181.

How do I sell my used Johnford?

Call (844) 478-8181 or email sales@resellcnc.com. We buy every Johnford model nationwide. Free appraisal within 24 hours.