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PRODUCT DESCRIPTION

Iwata Hi-Line HP-CH Airbrush

0.3 mm Gravity Feed • Dual Action • MAC Valve • Made in Japan • H4100

AUTHORISED UK IWATA DEALER

Why the Hi-Line HP-CH 👇

✅	The Micro Air Control (MAC) Valve lets you fine-tune airflow right at the airbrush — dial from coarse stipple to full atomisation with a turn, without walking back to the compressor.
✅	It's the HP-C Plus you know, plus the MAC valve: same 0.3 mm H3 head, same cutaway preset handle, extra airflow control on top.
✅	Top of Iwata's "Total Control" detail range, sitting just below the Custom Micron — genuine fine-line precision.
✅	Genuine Japanese build, spring-steel needle, PTFE seals — and each unit is individually test-sprayed before it ships.

🖌️ About This Airbrush

The Hi-Line HP-CH is Iwata's fine-detail airbrush with one extra trick: the Micro Air Control (MAC) Valve. It's built on the same "Total Control" foundation as the HP-C Plus — the 0.3 mm H3 head, the cutaway preset handle, the refined trigger — and adds airflow adjustment directly at the head.

In practice the MAC valve means you can make tiny airflow tweaks where your hands already are: restrict it for controlled stippling, open it for finely atomised background spray, or open it fully to flush the airbrush during colour changes. A compressor regulator only gives you coarse adjustments from across the desk — the MAC valve gives you fine control at the tip.

If you tune airflow constantly and want that control in your fingertips, the HP-CH is the tool. If you set your pressure once and leave it, read the honest note below — the HP-C Plus may be the smarter buy.

🌬️ The MAC Valve, Plainly

▸	Restrict it — lower airflow at the same pressure for coarser stipple and texture effects.
▸	Fine-tune it — find the exact airflow for maximum control over fine lines and detail.
▸	Open it fully — maximum atomisation for background spray, or to flush through during cleaning and colour changes.

📊 Specifications

Model	Hi-Line HP-CH (H4100)
Feed type	Gravity feed
Trigger action	Dual action
Nozzle size	0.3 mm
Nozzle type	Screw-in (threaded)
Head system	H3
Air control	MAC Valve (Micro Air Control)
Cup capacity	7 ml (0.24 oz) with snap-on lid
Optimal pressure	15–25 psi (0.10–0.17 MPa)
Spray pattern	Fine line (0.3 mm) to approx. 25 mm (1 in)
Needle	Spring steel
Seals	PTFE, solvent-resistant
Handle	Cutaway preset (quick-flush + preset output)
Country of manufacture	Japan
Warranty	5-year international; 10-year UK (see below)

📦 What's in the Box

▪	Iwata Hi-Line HP-CH airbrush with 7 ml gravity cup and snap-on lid
▪	Iwata nozzle spanner
▪	Iwata Lube (needle and lever lubricant)
▪	Quick start guide and the airbrush's own spray test sheet

Note: air hose is not included — airbrushes connect to a standard 1/8 in fitting.

🔧 Spare Parts & Compatibility

The HP-CH uses the Iwata H3 head system (0.3 mm). Genuine wear parts you'll eventually reorder:

▪	0.3 mm needle (H3, spring steel)
▪	0.3 mm nozzle (H3, screw-in)
▪	Nozzle cap and needle cap (H3)
▪	PTFE needle packing; MAC valve packing O-ring

Compatibility, straight:

✓ The 0.3 mm needle and nozzle are the same H3 parts used in the Iwata HP-C Plus — the two share the 0.3 mm head.

✓ Can be converted to 0.2 mm for finer detail by fitting the optional 0.2 mm nozzle and needle cap — you keep the standard 0.3 mm needle.

✗ The nozzle is threaded (not Eclipse compression-fit), and Hi-Line uses larger-diameter threads than the older HP series — use genuine Hi-Line/HP+ nozzles, don't cross-fit.

💡 Pro Tips

▸	Set your compressor to 15–25 psi, then use the MAC valve for the fine airflow adjustments — it's far more precise than nudging the regulator mid-session.
▸	Open the MAC valve fully when cleaning — the extra airflow clears the paint passage more effectively.
▸	Thin acrylics well. A 0.3 mm rewards good thinning and clogs on thick paint.
▸	Seat the threaded nozzle with the spanner — snug, never forced.

⚖️ Honest Limitations

• The MAC valve is what you pay extra for over the HP-C Plus. Same 0.3 mm head, same handle. If you set your pressure at the regulator and don't tweak airflow on the fly, the HP-C Plus does the same job for less — the MAC valve is a genuine refinement, not a magic upgrade. Buy it because you'll use it.

• This is a dedicated detail airbrush (0.3 mm standard). For priming and base-coating large surfaces with thicker paint, a 0.35 mm Eclipse HP-CS or a 0.5 mm is the better tool.

• The 0.3 mm is less forgiving with thick or poorly-thinned paint. That's the trade for the precision.

🚚 Shipping & Warranty

📦	Order before 3 PM Mon–Fri and we dispatch the same day from Derby.
🚚	Sent tracked via Royal Mail. We're in the Midlands next to the Royal Mail superhub — a genuine speed advantage across the UK.
🛡️	5-year international limited warranty (Anest Iwata-Medea), extended to 10 years in the UK by The Airbrush Company Ltd for purchases from an authorised UK reseller — which we are. Keep your proof of purchase.

Hobby Heaven

By Hobbyists. For Hobbyists.

Authorised Iwata dealer • Family-run, Derby UK • Real advice, no marketing fluff

Iwata Hi-Line HP-CH Airbrush 0.3 mm Gravity Feed • Dual Action • MAC Valve • Made in Japan • H4100 AUTHORISED UK IWATA DEALER Why the Hi-Line HP-CH 👇 ✅The Micro Air Control (MAC) Valve lets you fine-tune airflow right at the airbrush — dial from coarse stipple to full atomisation with a turn, without walking back to the compressor. ✅It's the HP-C Plus you know, plus the MAC valve: same 0.3 mm H3 head, same cutaway preset handle, extra airflow control on top. ✅Top of Iwata's "Total Control" detail range, sitting just below the Custom Micron — genuine fine-line precision. ✅Genuine Japanese build, spring-steel needle, PTFE seals — and each unit is individually test-sprayed before it ships. 🖌️ About This Airbrush The Hi-Line HP-CH is Iwata's fine-detail airbrush with one extra trick: the Micro Air Control (MAC) Valve. It's built on the same "Total Control" foundation as the HP-C Plus — the 0.3 mm H3 head, the cutaway preset handle, the refined trigger — and adds airflow adjustment directly at the head. In practice the MAC valve means you can make tiny airflow tweaks where your hands already are: restrict it for controlled stippling, open it for finely atomised background spray, or open it fully to flush the airbrush during colour changes. A compressor regulator only gives you coarse adjustments from across the desk — the MAC valve gives you fine control at the tip. If you tune airflow constantly and want that control in your fingertips, the HP-CH is the tool. If you set your pressure once and leave it, read the honest note below — the HP-C Plus may be the smarter buy. 🌬️ The MAC Valve, Plainly ▸Restrict it — lower airflow at the same pressure for coarser stipple and texture effects. ▸Fine-tune it — find the exact airflow for maximum control over fine lines and detail. ▸Open it fully — maximum atomisation for background spray, or to flush through during cleaning and colour changes. 📊 Specifications ModelHi-Line HP-CH (H4100) Feed typeGravity feed Trigger actionDual action Nozzle size0.3 mm Nozzle typeScrew-in (threaded) Head systemH3 Air controlMAC Valve (Micro Air Control) Cup capacity7 ml (0.24 oz) with snap-on lid Optimal pressure15–25 psi (0.10–0.17 MPa) Spray patternFine line (0.3 mm) to approx. 25 mm (1 in) NeedleSpring steel SealsPTFE, solvent-resistant HandleCutaway preset (quick-flush + preset output) Country of manufactureJapan Warranty5-year international; 10-year UK (see below) 📦 What's in the Box ▪Iwata Hi-Line HP-CH airbrush with 7 ml gravity cup and snap-on lid ▪Iwata nozzle spanner ▪Iwata Lube (needle and lever lubricant) ▪Quick start guide and the airbrush's own spray test sheet Note: air hose is not included — airbrushes connect to a standard 1/8 in fitting. 🔧 Spare Parts & Compatibility The HP-CH uses the Iwata H3 head system (0.3 mm). Genuine wear parts you'll eventually reorder: ▪0.3 mm needle (H3, spring steel) ▪0.3 mm nozzle (H3, screw-in) ▪Nozzle cap and needle cap (H3) ▪PTFE needle packing; MAC valve packing O-ring Compatibility, straight: ✓ The 0.3 mm needle and nozzle are the same H3 parts used in the Iwata HP-C Plus — the two share the 0.3 mm head. ✓ Can be converted to 0.2 mm for finer detail by fitting the optional 0.2 mm nozzle and needle cap — you keep the standard 0.3 mm needle. ✗ The nozzle is threaded (not Eclipse compression-fit), and Hi-Line uses larger-diameter threads than the older HP series — use genuine Hi-Line/HP+ nozzles, don't cross-fit. 💡 Pro Tips ▸Set your compressor to 15–25 psi, then use the MAC valve for the fine airflow adjustments — it's far more precise than nudging the regulator mid-session. ▸Open the MAC valve fully when cleaning — the extra airflow clears the paint passage more effectively. ▸Thin acrylics well. A 0.3 mm rewards good thinning and clogs on thick paint. ▸Seat the threaded nozzle with the spanner — snug, never forced. ⚖️ Honest Limitations • The MAC valve is what you pay extra for over the HP-C Plus. Same 0.3 mm head, same handle. If you set your pressure at the regulator and don't tweak airflow on the fly, the HP-C Plus does the same job for less — the MAC valve is a genuine refinement, not a magic upgrade. Buy it because you'll use it. • This is a dedicated detail airbrush (0.3 mm standard). For priming and base-coating large surfaces with thicker paint, a 0.35 mm Eclipse HP-CS or a 0.5 mm is the better tool. • The 0.3 mm is less forgiving with thick or poorly-thinned paint. That's the trade for the precision. 🚚 Shipping & Warranty 📦Order before 3 PM Mon–Fri and we dispatch the same day from Derby. 🚚Sent tracked via Royal Mail. We're in the Midlands next to the Royal Mail superhub — a genuine speed advantage across the UK. 🛡️5-year international limited warranty (Anest Iwata-Medea), extended to 10 years in the UK by The Airbrush Company Ltd for purchases from an authorised UK reseller — which we are. Keep your proof of purchase. Hobby Heaven By Hobbyists. For Hobbyists. Authorised Iwata dealer • Family-run, Derby UK • Real advice, no marketing fluff

Specifications

Power Source Air (requires compressor - not included)
Custom Bundle Yes (includes bonus HHP-1001 Masking Putty)
MPN H4001
Suitable For Miniatures, Scale Models, Detail Work, Automotive, Illustration
Feed Type Gravity Feed
Colour Chrome/Silver
Brand Iwata
Item Airbrushing
Type Airbrushes
Noozle Type Screw-On (threaded)
Working Pressure 15–25 psi
Seal type PTFE (solvent-resistant)
Head System H3
Air Control MAC Valve (Micro Air Control)
Country of Origin Japan
Cup Capacity 7 ml (0.24 oz) with snap-on lid

ABOUT US

Welcome to Hobby Heaven!

We're a brand built by passionate hobbyists for hobbyists. Our mission is to support all your creative endeavors, whether you're into modeling, wargaming, crafting, or art. As enthusiasts ourselves, we understand the importance of quality supplies at affordable prices.

Our carefully curated selection of high-quality materials is designed to inspire and empower hobbyists and artists alike. We're particularly proud of our innovative, cost-effective basing system - a game-changer for modelers and wargamers looking for professional results without breaking the bank.

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Thank you for choosing us as your trusted partner in creativity. We're excited to be part of your hobby journey!

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SHIPPING

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RETURNS

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