---
title: "PostPro Chamber Sizes and Cycle Times | AMT PostPro"
description: "Chamber sizes and cycle times for the PostPro SFX, SF2X, SF50 and SF100 from AMT’s product pages, with tips for planning each vapor smoothing run."
canonical: https://amtechnologies.com/community/guides/know-your-chamber/
updated: 2026-10-06
type: guide
---
Community guide Tips & tricks / Racking & hanging

# Know your chamber: sizes and cycle times across the SF range

Planning a run starts with the chamber. These are the published figures from AMT’s product pages.

- By AMT Team
- FAQ
- 1 min read
- Updated Oct 2026
- Sources[1]

| Machine | Chamber (published) | Cycle |
| --- | --- | --- |
| PostPro SFX | 190 × 320 × 190 mm (11.5 L) | 2 h |
| PostPro SF2X | double the chamber capacity of the SFX | 2 h |
| PostPro SF50 | 400 × 300 × 400 mm | 1.5–2 h |
| PostPro SF100 | 400 × 600 × 400 mm | 1.5–2 h |

For the SF2X’s chamber dimensions, see the [SF2X product page](https://amtechnologies.com/products/vapor-smoothing/postpro-sf2x/) or ask AMT.

The SF50 and SF100 are the same machine with two chamber sizes: the SF50 page describes it as having the same benefits as the SF100, with a more compact processing chamber for smaller production runs and prototyping.

## Planning tips

- **Think in runs, not parts.** How many of your parts fit in one load, with room for the vapor to reach them, decides your throughput more than anything else.
- **Leave space.** A chamber packed wall to wall is rarely the best use of a cycle. See [How part orientation and fixturing affect results](https://amtechnologies.com/community/guides/orientation-and-fixturing/).
- **Large parts.** If a part is close to the chamber size, talk to AMT before you design around it, and test it in a [benchmark](https://benchmarking.amtechnologies.com/submit?utm_source=amtechnologies.com&utm_medium=community-page&utm_campaign=site-2026&utm_content=know-your-chamber-guide).

Forum · Over to you

How many parts do you typically fit in a run, and what part sizes do you smooth most?

[Answer in the forum thread (opens the community forum in a new tab)](https://amtpostpro.discourse.group/t/know-your-chamber-sizes-and-cycle-times-across-the-sf-range/42)

Next step

## See the price. Run the numbers. Hold the part.

List prices are public and the cost-per-part math is yours to check, with no email needed for either. The free benchmark puts your own parts, vapor smoothed, in your hands.

1. 01 Quote

   ### Build your quote

   Pick a system and its options and get an itemized total on screen, from AMT’s published list prices.

   [Build your quote](https://amtechnologies.com/quote/)
2. 02 ROI

   ### Calculate your ROI

   Compare your cost per part with manual finishing, using your own labor rate and volumes. Every assumption is editable.

   [Calculate ROI](https://amtechnologies.com/roi/)
3. 03 Benchmark

   ### Test your parts, free

   Ship us your parts with a prepaid label. We vapor smooth them and send them back with before-and-after photos and a benchmark report.

   [Test your parts, free](https://benchmarking.amtechnologies.com/submit?utm_source=amtechnologies.com&utm_medium=community-page&utm_campaign=site-2026&utm_content=know-your-chamber-decision)

   No cost to evaluate · Parts returned · Typical turnaround 2–3 weeks[2]

Prices: AMT list prices, excluding tax and shipping; confirmed in your formal quote.

[Not sure which system? Help me choose](https://amtechnologies.com/configurator/)

## Sources

1. [Vapor smoothing: SF and X-series family page and SFX, SF2X, SF50, SF100 product pages](https://amtechnologies.com/products/vapor-smoothing/) · AMT · read Oct 6, 2026 · also [AMT](https://amtechnologies.com/products/vapor-smoothing/postpro-sfx-desktop-vapor-smoothing-system/) · also [AMT](https://amtechnologies.com/products/vapor-smoothing/postpro-sf2x/) · also [AMT](https://amtechnologies.com/products/vapor-smoothing/postpro-sf50/) · also [AMT](https://amtechnologies.com/products/vapor-smoothing/postpro-sf100/)
2. [PostPro benchmarking: send us your 3D printed parts](https://benchmarking.amtechnologies.com/) · AMT · read Oct 6, 2026