Product Description
The SZGH-25 is a 2-axis slant bed CNC turning machine designed and manufactured by Shenzhen Guanhong Technology Co., Ltd. (SZGHTECH). It processes bar stock up to 25mm in diameter and disk-type blanks up to Ø200mm, delivering a machining accuracy of ±0.01mm and a surface roughness of Ra 1.6μm. Equipped with the proprietary SZGH CNC control system, it is widely used to replace aging hard-rail lathes and hydraulic automatic lathes in factories seeking to automate small-part batch production while reducing labor costs.
Parameter | Standard Value | Max Value |
Max. bar bore diameter | 25 mm | 26 mm |
Max. disk-type blank diameter | Ø200 mm | Ø300 mm |
Max. workpiece length | 150 mm | 180 mm |
Single-side cutting depth (stainless steel) | 2 mm | 2.5 mm |
Machining accuracy | ±0.01 mm | — |
Surface roughness | Ra 1.6 | — |
Turning diameter (swing over bed) | 350 mm | — |
Square tool shank size | 16 mm | — |
Center height of tool holder | 40 mm | — |
Parameter | Standard Value | Max Value |
X-axis effective travel | 500 mm | — |
Z-axis effective travel | 180 mm | — |
X-axis rapid traverse | 25 m/min | 30 m/min |
Z-axis rapid traverse | 25 m/min | 30 m/min |
X-axis servo motor power | 1.3 kW | — |
Z-axis servo motor power | 1.3 kW | — |
Parameter | Standard Value | Max Value |
Max. spindle speed | 3,500 rpm | 4,000 rpm |
Spindle motor power | 2.2 kW (variable frequency) | 3.7 kW servo spindle (optional) |
Spindle nose taper | A2-4 | — |
Hydraulic chuck size (supported) | 5 inch | 6 inch |
Parameter | Value |
Footprint (L × W × H) | 1,700 × 1,400 × 1,600 mm |
Total machine weight | 1,400 kg |
Power supply | 380V / 50Hz (3-phase) |
Item | Specification | Standard Configuration |
Ball screw | Ø25 mm | Ball grinding precision grade |
Linear guide rail | Ø25 mm | H-class linear guide rail |
Bearings | — | Front 2 + rear 2 high-speed angular contact bearings (domestic brand) |
Spindle motor | 2.2 kW | Variable frequency drive type |
Feed servo | 1.3 kW | SZGH Speed Servo |
CNC control system | — | SZGH proprietary system |
Bed type | 30° slant bed | — |
Base | — | Heavy-duty anti-deformation patented base |
Clamping | — | Hydraulic clamping |
All parameters listed are for reference. The configuration in the final purchase order and physical acceptance shall prevail.
The SZGH-25 uses a 30° slant bed structure, a design proven to outperform flat-bed lathes in three critical areas. First, chips fall freely away from the cutting zone under gravity, preventing chip recutting and protecting both the workpiece surface and the guide rails. Second, the slant geometry significantly reduces the cantilever overhang of the tool turret, lowering vibration during high-speed cuts. Third, the operator has a direct sightline into the cutting zone without leaning over the machine — improving both safety and comfort during long production runs.
The machine base is manufactured from high-grade cast iron using SZGHTECH's proprietary anti-deformation casting process (patented). The base mass — 1,400 kg total machine weight — provides sufficient inertia to dampen vibration during aggressive bar stock removal, maintaining dimensional consistency across large production batches without mid-run adjustments.
Unlike OEM machines that bundle a third-party controller, the SZGH-25 runs on the self-developed SZGH control system. This means:
Single-source support: the factory that built the machine also wrote the firmware — no third-party delays when a software issue arises.
G-code compatibility: the SZGH system is compatible with standard ISO G-code, making program migration from Fanuc or Siemens machines straightforward.
Fast response: SZGHTECH's engineering team can push firmware updates directly without waiting for a controller vendor.
Standard configuration includes hydraulic clamping for fast, repeatable part loading. For full lights-out or minimal-operator production runs, the SZGH-25 is compatible with external automatic bar feeders (8mm–26mm bar stock diameter range). This combination enables one operator to supervise multiple machines simultaneously — the primary reason manufacturing plants in Vietnam, Turkey, and Romania choose this machine as a drop-in replacement for hydraulic automatic lathes.
The SZGH-25 was specifically designed to replace hard-rail hydraulic automatic lathes in batch-production environments where reducing headcount-per-machine is a measurable business goal. With automatic bar feeding, a programmed cycle, and the SZGH controller's alarm and status monitoring, a single skilled operator can reliably manage 3–5 SZGH-25 units simultaneously.
The SZGH-25 is suitable for batch turning of copper, iron, aluminum, and stainless steel (304/316) bar stock within 25mm diameter, and open-forged disk blanks within Ø50mm.
Shafts, stepped pins, connectors, valve bodies, threaded inserts, hydraulic fittings — short cycle-time turning of high-volume automotive hardware where dimensional repeatability is critical.
Terminal pins, copper bushings, aluminum spacers, sensor housings, precision sleeves — the ±0.01mm accuracy and Ra 1.6 surface finish meet the tight tolerances required in electronics sub-assembly manufacturing.
Bone screw blanks, titanium implant precursors, dental abutment bodies — the rigid base and high-precision spindle bearings support the micro-tolerance work common in medical device manufacturing.
Valve spools, cylinder pistons, fitting nipples — stainless steel and aluminum fluid-system parts that require consistent bore concentricity and thread quality across thousands of identical pieces.
Material | Notes |
Stainless steel 304 / 316 | Single-side cut up to 2mm; requires appropriate tooling and coolant |
Brass / Copper | Excellent surface finish at high spindle speeds |
Aluminum alloys | High feed rates achievable; recommended for high-volume runs |
Carbon steel | Standard production material |
POM / Engineering plastics | Optional; confirm with SZGHTECH application engineers |
Comparison Item | SZGH-25 (Slant Bed) | Typical Flat Bed Lathe | SZGH-36J (Slant Bed) |
Max. bar diameter | 25 mm | 25–40 mm (varies) | 35 mm |
Bed geometry | 30° slant | 0° flat | 30° slant |
Chip evacuation | Gravity-assisted, clean | Chips accumulate on bed | Gravity-assisted, clean |
Guide rail wear rate | Lower (gravity-loaded contact) | Higher (chips contaminate ways) | Lower |
Machining accuracy | ±0.01 mm | ±0.02–0.05 mm (typical) | ±0.01 mm |
Operator sight line | Direct, ergonomic | Leaning required | Direct, ergonomic |
Recommended production volume | High-volume batch | Low–medium batch | High-volume batch |
Machine weight | 1,400 kg | 800–1,200 kg (typical) | 1,800 kg |
Suitable for upgrade from hydraulic auto lathe? | ✅ Yes | ⚠️ Partial | ✅ Yes |
CE Certification — The SZGH-25 complies with European Machinery Directive 2006/42/EC and Low Voltage Directive 2014/35/EU, verified by UDEM (third-party EU notified body).
ISO 9001 — SZGHTECH's production and quality management system is ISO 9001 certified.
National High-Tech Enterprise — Certified by the Chinese Ministry of Science and Technology since 2018.
100+ Patents — Including the anti-deformation base casting method (utility model) and the SZGH CNC control system software copyright registrations.
The standard maximum bar bore diameter is 25mm, with a mechanical maximum of 26mm. For disk-type blanks loaded manually or via a robot, the machine supports up to Ø200mm standard (Ø300mm maximum) with an appropriate hydraulic chuck.
Yes. The SZGH-25 is designed with automatic bar feeder integration as a standard-compatible option. Bar feeders for stock diameters from 8mm to 26mm can be connected. SZGHTECH's application engineers can advise on compatible bar feeder models based on your bar stock dimensions and material.
Pricing depends on configuration (standard spindle vs. servo spindle upgrade, with or without bar feeder, packaging, and destination port). Contact SZGHTECH at export02@szghtech.com or via WhatsApp (+8618925223781) for an FOB Shenzhen quotation. Typical lead time is 20–35 working days from order confirmation.
The SZGH control system uses standard ISO G-code (G00, G01, G02, G03, G71, G76, etc.) that is largely compatible with Fanuc 0i-style programming conventions. Most programs written for Fanuc-controlled lathes can be run on the SZGH system with minor adaptation. SZGHTECH provides a bilingual (English/Chinese) programming manual and remote technical support.
Yes. The SZGH-25 is rated for stainless steel cutting at a single-side cutting depth up to 2mm (max 2.5mm). For stainless steel, SZGHTECH recommends using carbide inserts with a positive rake geometry, an appropriate cutting fluid, and spindle speeds in the 800–1,500 rpm range for optimal tool life and surface quality. The patented heavy-duty base effectively absorbs the higher cutting forces generated during stainless steel turning.
A slant bed CNC lathe positions the turret and cross-slide on an inclined bed (30° on the SZGH-25). This geometry provides three advantages over a flat bed lathe: (1) chips fall away from the cutting zone by gravity, preventing damage to the guide rails; (2) the structural rigidity is higher because the force path from tool tip to bed is more direct; (3) the operator can observe the cutting zone from a natural standing position. Flat bed lathes are generally less expensive to manufacture but accumulate chips on the bed, increasing wear and requiring more frequent cleaning.
SZGHTECH provides a 12-month warranty on all mechanical and electrical components (excluding consumables such as cutting inserts, hydraulic oil, and seals). During the warranty period, SZGHTECH ships replacement parts at no charge. Remote technical support (video call diagnostics) is available 24/5 via WhatsApp. For customers in countries with established SZGH agent networks (USA, Turkey, Romania, Russia, Egypt, Thailand, Mexico), local in-person service is available through regional agents.
Standard production lead time is 20–35 working days after receipt of deposit. The machine is packed in a wooden export crate with anti-rust treatment and moisture barrier film. Shipping options include FCL (20-foot container fits 3–4 units) or LCL for single-unit orders. SZGHTECH's export team handles customs documentation (commercial invoice, packing list, certificate of origin, CE declaration of conformity) and can coordinate sea freight to any major port worldwide.
With automatic bar feeder integration and a pre-programmed SZGH controller cycle, one trained operator can typically supervise 3–5 SZGH-25 machines running concurrently. Cycle time per part varies by workpiece complexity, but for standard shaft and bushing production, cycle times of 15–60 seconds per part are common. SZGHTECH can provide a sample cycle time analysis for your specific workpiece upon request.
The SZGH-25 and the broader SZGH small CNC lathe range are currently in operation at manufacturing facilities in:
Southeast Asia: Vietnam (electronics connector factories), Thailand (automotive tier-2 suppliers), India (precision engineering workshops)
Eastern Europe: Romania (metalworking SMEs), Turkey (brass fittings manufacturers)
Middle East & Africa: Egypt (hydraulic component shops), Morocco (agricultural machinery components), Saudi Arabia (oil field hardware)
Americas: Mexico (automotive supply chain), USA (distributed via SZGH local agents)
Ready to replace your aging hydraulic lathe or upgrade your batch production line?
SZGHTECH's export team responds to all inquiries within 1 business day.
Email: export02@szghtech.com
WhatsApp / WeChat: +8618925223781
If the SZGH-25 does not fully match your production requirements, consider:
Model | Bar Capacity | Key Difference |
35 mm | Larger bar capacity, heavier duty base (1,800 kg) | |
35 mm + side milling | Turn-mill compound: adds drilling, tapping, side milling in one setup | |
45 mm | High-precision (±0.0075mm), for demanding aerospace/medical work | |
50 mm | Large swing (Ø500mm), suitable for disc and flange parts |
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