High Speed Precision Press Buyer's Guide
Exhibition Info 2026/07/09
High Speed Precision Press Buyer's Guide
GH Series Crank Type Press Specifications Explained
For distributors and dealers fielding technical questions from end users, understanding what actually separates one high-speed precision press from another is the difference between a confident quote and a stalled deal. The Fair Oaks GH Series Crank Type Press is our core product line, built on three decades of manufacturing experience and trusted across 19+ export markets. This guide breaks down the specifications that matter most when positioning the GH Series to your customers — what each number means, why it's on the spec sheet, and how to translate it into a value proposition.
Why Spec Literacy Matters for Dealers
End users buying a high-speed precision press are rarely comparing price alone — they are comparing tonnage, accuracy class, bolster size, and motor power against their own die specifications and production targets. A dealer who can explain why a GH-220 is the right fit for an EV motor lamination line, rather than simply reciting numbers, closes more sales and builds longer-term trust. The sections below walk through the GH Series product page spec sheet section by section.
1. Press Capacity (Tonnage)
Press capacity, expressed in tons, is the maximum force the slide can deliver near the bottom of its stroke. It is the first number most buyers ask about, but it should never be the only one quoted. A customer stamping thin silicon steel laminations for motor cores may need far less tonnage than the bolster area suggests, while a customer running thicker stock may need more force than the machine's footprint implies. The GH Series spans GH-45 through GH-330, covering 45 to 330 tons, so dealers can match capacity directly to the customer's die tonnage calculation rather than rounding up or down.
2. Bolster Area
Bolster area defines the usable die-mounting surface and is usually the first physical constraint a tooling engineer checks. On the representative GH-220 model, the bolster area is 1,700 × 950 mm — large enough for multi-station progressive dies common in motor lamination and 3C electronics stamping. When a customer sends die drawings, compare the die's footprint and clearance requirements against this figure before quoting; a press with sufficient tonnage but an undersized bolster is still the wrong recommendation.
3. Accuracy Class — Why "JIS Special" Matters
Every GH Series press is built to meet the JIS Special accuracy standard, the strictest tier of the Japanese Industrial Standard for press machinery, covering slide parallelism, perpendicularity, and repeatability. This is one of the strongest selling points in the GH Series and worth emphasizing in every quote: tighter accuracy directly extends die life, reduces scrap rates, and lowers the customer's long-term tooling cost. For the full breakdown of how Fair Oaks maintains this standard across every unit, see our Quality Assurance page — dealers can frame JIS Special not as a technical footnote but as a total-cost-of-ownership argument.
4. Frame Construction and Rigidity
Underneath the accuracy rating is the structural engineering that makes it possible. GH Series frames use high-tensile cast iron castings that are stress-relieved before machining, with the structure validated through computerized finite element analysis (FEM) to confirm strength and strain behavior under load. The frame is then tightened with tie-rods under hydraulic preload, which keeps the structure rigid across the full range of production speeds. This engineering approach is part of what we describe on our Leading 100% Key Technologies page. For customers running high-volume, high-speed jobs, this rigidity is what prevents accuracy drift over years of continuous operation — a point worth raising with buyers who are comparing on price alone.
5. Clutch-Brake System and Bearing Design
The GH Series uses a separated clutch and brake design, which improves positioning accuracy and adds a layer of operational safety compared to combined clutch-brake units. Combined with clearance-free axial bearings on the plunger and slide guides, plus preloaded tie-rods with extended guides, the press maintains both static and dynamic accuracy under load — directly extending the service life of the customer's stamping dies. This is especially relevant for buyers running multi-shift operations where unplanned die maintenance translates directly into lost production time.
6. Main Shaft Material
The main shaft on every GH Series press is machined from Nickel Chrome Molybdenum alloy steel, hardened and precision ground. This material choice resists fatigue and wear under the repeated high-speed loading cycles typical of automotive, EV motor, and appliance motor production — a detail that matters most to customers running three-shift operations where component longevity is a real cost driver.
7. Motor Drive and Lubrication System
The representative GH-220 model is fitted with a 45 kW motor drive, sized to sustain the press's rated tonnage across its full stroke range without derating at high speed. Every GH Series press also includes a forced lubrication system paired with cooling, which reduces thermal strain on moving components, improves stamping consistency, and extends the operational life of the machine itself — not just the dies. For dealers, this is a useful answer to the common customer question of long-term maintenance cost.
8. Controller and Operability
GH Series presses are equipped with computer controllers running Fair Oaks' proprietary stamping operation software, designed for intuitive parameter setup and fast changeovers between jobs. A built-in fault display speeds up troubleshooting on the shop floor, reducing the technical burden on the customer's operators and minimizing downtime. Combined with our After-sales Service support network, this gives dealers a practical answer for customers without large in-house maintenance teams.
GH Series Models at a Glance
The table below summarizes the GH Series model range. Use it as a quick reference when narrowing down options with a customer; final selection should always be confirmed against the customer's die specifications and production rate requirements.
| Model | Press Capacity | Typical Application Fit |
|---|---|---|
| GH-45 | 45 tons | Small precision components, 3C electronics parts |
| GH-60 | 60 tons | Small to mid-size stamped components |
| GH-80 | 80 tons | Mid-size motor and appliance parts |
| GH-125 | 125 tons | Industrial motor cores, mid-volume production |
| GH-220 | 220 tons | EV/HEV motor lamination, larger progressive dies |
| GH-300 | 300 tons | Heavy-duty automotive and motor components |
| GH-330 | 330 tons | High-tonnage, high-volume industrial applications |
Matching GH Series Models to Industry Applications
The right GH model often follows from the end customer's industry. For Automotive and EV Motor Electricals, higher-tonnage models in the GH-220 to GH-330 range are typically the better fit. For 3C Electronics and small precision components, the GH-45 to GH-80 range covers most production needs. For Home Appliances motor cores, the mid-range GH-80 to GH-220 models are most common. For Industrial Motors, dealers should also consider Fair Oaks' GL Series for higher-volume requirements alongside the GH Series.
Questions to Ask Before Recommending a Model
- What is the material thickness, maximum material width, material type and die tonnage requirement?
- What is the die's footprint, and does it fit within the bolster area with adequate clearance?
- What production speed (strokes per minute) does the customer's output target require?
- Is this for EV/HEV motor lamination, 3C electronics, home appliances, or industrial motors — each industry tends to favor a different point in the GH range?
- Does the customer run multiple shifts, where forced lubrication and bearing rigidity translate into measurable uptime gains?
Obtaining the finished rotor and stator drawings from the customer is of critical importance. With these drawings, Fair Oaks will be able to properly design the complete production line tailored to your needs and offer a suitable quotation.
Positioning GH Series to Your Customers
When presenting the GH Series, dealers get the most traction by leading with outcomes rather than specifications alone: longer die life from JIS Special accuracy and clearance-free bearings, lower downtime from forced lubrication and fault-display diagnostics, and a tonnage range wide enough to cover everything from small 3C components to heavy automotive motor parts under one trusted brand. Fair Oaks has supplied GH Series presses to customers across Asia, Europe, and the Americas for three decades — see our Global Marketing page and Company Profile for a track record dealers can point to alongside the spec sheet. For a broader market view, our recent Global Buyer's Guide article covers how Fair Oaks compares across the wider high-speed press market.
For full technical drawings, detailed model-by-model specifications, or support preparing a customer quotation, please visit our E-Catalog, browse the full product line, or contact the Fair Oaks team directly.
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